Take a deep dive into the true-crime stories rocking headlines and social media feeds. These victims were young, the crimes against them were shocking and haunting questions remain.

An Unexpected Killer takes a deep dive into homicide investigations through captivating interviews with potential suspects, in-depth examinations of the crime scene and re-enactments. Viewers follow experienced homicide investigators who believe they are inches away from solving the case, until they come across something unanticipated. Whether it's a new witness, an overlooked piece of evidence or even an innovation in forensic science, in each case detectives find a startling discovery that sends the investigation in a completely new direction in their search for justice.

Detectives, friends and family reveal the twists and turns that led to tragedy, and where it all went wrong - revealing the 10 steps to murder.

Historian and Wende Museum founder Justin Jampol unlocks the secrets of the past through recently unearthed artifacts. Using state-of-the-art scientific testing and good old-fashioned detective work, Justin's investigations reveal new understandings about some of the most significant moments in history.

During the Ordovician life expanded in diversity tremendously. After a mass extinction event, the Devonian period began and fish flourished.

Lost Cities with Albert Lin combines hi-tech archaeology, breath-taking visuals and genuine exploration to make headline-grabbing discoveries. Lost Cities brings adventure, science and archaeology together through our host Albert Lin. Our ambitious approach applies 3D scanning to some of the most extraordinary sites of antiquity. This series will deliver powerful, emotional stories with hi-tech imagery to bring the mysteries of the past vividly to life.

From a network of cellars, wells and tunnels in the Czech Republic once used to create the world's most popular beer to the secret caverns and rock formations of the Cheddar Gorge in Southwest England, Underground Marvels puts the spotlight on the wonders that exist beneath our feet.

Inspired by the box office smash, GET OUT each episode of this intimate psychological thriller will explore the terrifying, real-life events of an outsider who falls for someone in a seemingly normal family only to find themselves entangled in an evil clan capable of abuse, kidnapping, or something even more sinister.As each story unfolds, this fatal fish-out-of-water series is a reflection of life's own unpredictable path of twists and turns, in a journey that exposes the shady underbelly of the family tree. All the while the newcomer is questioning their own sense of reality and in some cases, morality as small signs of trouble become dark and deadly. Once you join the family, can you ever get out?

Engineering failures are Icarus-like moments when our overreaching, greed and desire to conquer the impossible can cost not just reputations, but millions of dollars, the environment and lives. Each episode will focus on one disaster, looking at dramatic archive news footage of the disaster occurring and its devastating impact.

Murder in the Bayou investigates the unsolved murders of eight women whose bodies were discovered between 2005 and 2009 in drainage canals and on desolate back roads in and around the town of Jennings, Louisiana in rural Jefferson Davis Parish.

From tunnels to towers, artillery sites, resistance nests and communication centers, Nazi Germany left their footprint throughout the world. To this day, silent remains still exist, sentinels guarding clues about plots that Hitler was unable to carry out. Secret Nazi Ruins digs up mysteries from some of the most covert projects as experts dissect and reveal the purpose of these structures, their makeup, and technical design.

Homicide investigations unfold through dramatic real video footage in this groundbreaking new series. This series provides an up-close perspective on homicide investigations, incorporating bodycam footage from the initial crime scene, surveillance video, and interrogation room recordings. This footage is interwoven with present-day interviews from those directly involved in the investigation. The Murder Tapes uses every conceivable form of authentic video available, sharing up-close perspectives in a raw and unfiltered form. Viewers see and hear first impressions from officers to show exactly how theories begin to arise, heart-pounding confessionals inside the interrogation room, and from loved ones in real time.

Killer Motive uncovers dark and twisted motives, from vengeance to jealousy to greed that led to gruesome killings.

Professor David Wilson explores Scottish crimes.

The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

Greatest Events of World War II charts the crucial moments of the Second World War using previously unseen archive footage processed with state-of-the-art colourisation software.

Serengeti follows the interconnected stories of a cast of savannah animals over one year. The series captures the high drama of the area's distinctive wildlife up close. There's love and loss, jealousy and rivalry, tragedy and triumph, as their lives entwine and dramatically unfold in the heart of this legendary land.

Blue Water Empire is a dramatised documentary series giving new insight into the history and culture of the Torres Strait Islands. The series starts pre-colonisation and charts the impact of European arrival from the missionaries to the influx of people from all around the world during the pearling boom. A thrilling and vital, yet largely unknown, part of our Australian history. The great cast includes Jack Thompson, Ryan Corr, Damian Walshe- Howling and Aaron Fa'aoso.

In 1961, President Kennedy issued a grand challenge: to land a man on the moon and return him safely to Earth by the end of the decade. What followed was a series of daring missions against an almost impossible timeline on the most complicated spacecraft ever built. Revisit an era when NASA's team of engineers and astronauts gambled everything to embark on humankind's most ambitious journey, brought to life through archival interviews, rarely seen footage, and artifacts from the vaults of the Smithsonian's National Air and Space Museum.

Everything is bigger in Texas, including Sheriff J.B. Smith's personality. A veteran detective of Smith County, Texas, he knows what it's like to encounter larger-than-life crimes, and he knows he needs the best of the best at his side to solve them. Smith and his handpicked team of detectives, Pamela Dunklin and Joe Rasco, are here to show that when it comes to Smith County, Texas, if you're going to do the crime, you will do the time. Each member of this crime-fighting trio has skills designed to perfectly complement each other: Dunklin leads with her intuition and is not afraid to get down deep into the details; Rasco is the thinker and the feeler of the group, using his analytical mind and empathy to get the core of the crime; and, with Sheriff J.B. Smith as the fearless leader of the unit, Dunklin and Rasco are empowered to tap into the skillsets that put them on the force. In the Lone Star Justice, this group recounts their most memorable cases, proving once and for all that in the state of Texas, no one is above the law of the land.

Welcome to the greatest story that's never been told. In a new, ground breaking series we'll be telling the story of the planets as never before.Alongside the most accurate and detailed imagery ever produced, The Planets using the latest planetary science research to piece together the gripping history of each world. These are stories of beauty and creation, violence and destruction that reveal the solar system and our place within it to be far more dramatic than we could ever have imagined.

Just because a case is closed doesn't mean the truth has been revealed. Suicide or murder? Runaway or kidnapping? Accidental or premeditated? Each episode of Still a Mystery re-examines a single crime case where unanswered questions still remain. Through original interviews with law enforcement, family members and private investigators, news footage and social media, Still a Mystery dissects the evidence and presents new theories in a quest to uncover the truth.

Nature is awe inspiring, but sometimes it's downright weird--strange animal behavior, unexpected events, stuff that just doesn't make sense. A team of experts are on hand to work on solving nature's strangest mysteries.

Chernobyl dramatizes the true story of one of the worst man-made catastrophes in history and tells of the brave men and women who sacrificed to save Europe from unimaginable disaster. The miniseries focuses on the heartbreaking scope of the nuclear plant disaster that occurred in Ukraine in April 1986, revealing how and why it happened and telling the shocking, remarkable stories of the heroes who fought and fell.

Multiple cameras follow serious crime investigations in real time, revealing the crucial role cutting-edge forensic science now plays in bringing criminals to justice.

Kids Behind Bars: Life or Parole tells the individual stories of eight previously convicted child offenders sentenced to mandatory life terms, without parole, who are now seeking resentencing on the heels of a recent United States Supreme Court ruling. While some may be resentenced to life, others could be immediately released or given a new sentence that makes them eligible for parole.

The series will dive into the biggest controversies from in and out of the ring involving professional wrestling's most notorious superstars.

Despite being one of the most studied civilizations, rich in history, culture, science and art, much of Ancient Egypt remains a great mystery. Many modern-day customs and technologies have their roots in Ancient Egypt, yet the details about their way of life remain a mystery. On Egypt's Unexplained Files, experts dive deep into the secrets of Ancient Egypt, and use cutting-edge archaeological technology to reveal the hidden truths that could potentially answer questions that have befuddled Egyptologists for generations.

Host Donnie Wahlberg looks at some of the most-frightening killers in history, retracing their backgrounds, psychology, motives and how they were eventually caught.

Two brilliant physicists of our day, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align. Through the use of CGI and voice synthesizing technology we bring the two geniuses back to life and together for the very first time.

An immersive, action-packed series follows international teams of Egyptologists as they unearth the world's richest seam of ancient archaeology — Lost Treasures of Egypt. Through excavations and unprecedented access to the teams on the front line of archaeology, we follow these modern-day explorers as they battle searing heat and inhospitable terrain to make the discoveries of a lifetime.

When allegations of abuse by Jackson involving young boys surfaced in 1993, many found it hard to believe that he could be guilty of such unspeakable acts. Leaving Neverland explores the experiences of two young boys, James Safechuck, at age ten, and Wade Robson, at age seven, who were both befriended by Jackson. They and their families were entranced by the singer's fairy-tale existence as his career reached its peak.

Serial killer behaviors, postmortem rituals, and crime scene souvenirs are examined in Mark of a Killer.

Each week, John Walsh leads viewers through unsolved violent crimes that urgently need to be closed - where time is of the essence and harnessing the power of ID's active and engaged audience could bring these criminals to justice. Joining John in every episode is his son, Callahan Walsh, who leads the operation on the ground, working in tandem with the community and local authorities to search for persons-of-interest. In partnership with the National Center for Missing & Exploited Children (NCMEC), In Pursuit with John Walsh will also feature two missing children each hour, providing age-progression photos and descriptions in the hopes that viewers can provide new leads to their whereabouts.

Earth Odyssey with Dylan Dreyer is a live action, half-hour television program that will take viewers on an incredible journey to the wildest points of the globe, uncovering the connection between the environment, wildlife and human beings of exotic locales. The show's host, meteorologist Dylan Dreyer, will reveal a new destination each week, ranging from Africa to Indochina and the Middle East, as well as many untamed islands around the world. Audiences will come face-to-face with fascinating native animals - some cute, some dangerous - while learning amazing facts about nature and wildlife. "Earth Odyssey with Dylan Dreyer" gives audiences a captivating look at the symbiosis between all living things, in the most larger-than-life places on Earth.

Don Wildman combs through the vaults of the world's most prestigious institutions to unearth extraordinary artifacts with captivating, revealing and shocking mysteries that challenge our beliefs and defy expectations.

From the Arctic Ocean and its isolated Islands to the bleak, barren tundra and frozen forests of the taiga, the Arctic region is locked in ice for more than half of the year; in summer, this land of contrast bursts into life.

The current hype about bitcoin and other cryptocurrencies as millions are made and lost make for great headlines, but misses the far more interesting story about the technology that allows them to exist, namely, blockchain. This series dives into the cryptokingdom to understand the technology and why we should all care about how it develops. Just as it's difficult to do anything without the internet today, in 10 years, we might very well be saying the same thing about blockchain.The series travels through a landscape where the virtual and the physical intertwine, where seemingly abstract concepts like bitcoin, cryptocurrency, and blockchain have inspired libertarians, financiers and entrepreneurs to throw themselves into the technology and explore its potential for the future. Some see it as a revolution, others see the prospect of great profits, and many get lost in between - prey to scams, hacks, or naiveté. We travel across Latin America and Asia in search of the truth behind the hype.

21st Century Serial Killer forensically researches the lives of the killers who can't stop killing, revealing how the grim opportunities, provided by the 21st century, played a part in a number of murders.Criminologists, psychologists, journalists and detectives join family members of the victims to present an emotionally charged narrative.From the world's first transgender killer to an image and celebrity obsessed homicidal teenager; from the scientific advances in forensic investigation to the first-time social media-led hunt for a missing victim, each episode features a storyline that could only have happened in the 21st century.Featuring access to some of the real-life video and audio of the killers, alongside stylised reconstructions and interviews with those intimately involved, each story reveals the psychopathic behaviour in the beginnings of a serial killer's murderous journey. This is the series that brings science and the 21st century, to true crime.

Welcome to Murdertown follows the baffling murder mysteries where it's not just one person who's hiding something – it's everybody. From small towns and tight-lipped communities to tight-knit families, this series unravels the cases where police don't just have to crack the case, they need to penetrate a wall of silence too.

Explore the tropical forests, dense jungles, and vast grasslands of Colombia, where a tremendous array of animals face a daily struggle against fierce predators and harsh weather. Watch as young tamarins face deadly boa constrictors, capuchins dodge hungry jaguars, capybaras share streams with caimans, and dazzling hummingbirds engage in an endless quest for nectar. In these unforgiving landscapes, stunning creatures and hidden dangers are waiting to be discovered around every corner.

The Case That Haunts Me takes a dive into career-defining true crime stories told directly from the detectives who led each case. From mysterious vanishings to twisted family murders, these are the unforgettable cases that disrupt law & order, and keep authorities up at night.

Featuring A-list storytellers like Stephen King, Quentin Tarantino, Jordan Peele, Jason Blum, Robert Englund, Linda Blair, Tippi Hedren, Rob Zombie, Haley Joel Osment, Jack Black, John Landis, Jamie Lee Curtis and more, Eli Roth's History of Horror brings together the masters of horror - icons and stars who define the genre - to explore its biggest themes and reveal the inspirations and struggles behind its past and present. Each one-hour episode will take viewers on a chilling exploration of how horror has evolved through the eras and impacted society, as well as why loyal fans remain addicted to fear.

Award-winning journalist Caro Meldrum-Hanna investigates...

In Mexico, a rare mix of wildlife fights to exist. From desert to grassland to sea - animals hunt, mate and migrate. With the Pacific Ocean cooling the west, the Caribbean warming the east, and rugged mountains stretching from north to south, Mexico is a diverse refuge. Each landscape boasts rare and unique behaviours evolved by animals going to extreme measures to survive and ensure the safe arrival of the next generation.

Chilling criminal cases that captured the nation's imagination will be re-examined and dissected like never before in Inside Crime.

Hosted by Nine's Leila McKinnon and with expert insight from criminologist Garner Clancey, this gripping four-part series has been meticulously researched to expose the real story behind the headlines. Together with actual police videos, dramatic re-enactments, candid interviews and commentary from Australia's leading journalists, some of the country's most brutal crimes from the last ten years will be brought back to life and analysed in a raw and confronting way.

Adelaide in South Australia is a city of arts, culture, sport and magnificent old churches. It's also accused of being the murder capital of the world – with more serial killers, per capita, than anywhere else.It's a macabre reputation the city can't shake, and barely scratches the surface of what Adelaide truly is. City of Evil outlines grotesque criminal cases and explains why Adelaide is seen as Australia's happy hunting ground of bizarre crime.

Professor Darius Arya explores the hidden secrets of three of the most fascinating cities of the ancient world: Athens, Cairo and Istanbul. 3D scans allow us to view the architectural jewels of these cities as they've never been seen before. From the buildings on the Acropolis to the silver mines and quarries beyond, he investigates the story of Athens, the city that gave the world democracy. He uses the latest scanning technology to reveal the historical secrets of Cairo and Ancient Egypt, and explores the Great Pyramid of Giza and the first pyramid ever built. Later, Darius takes us on an extraordinary journey through the treasures of Istanbul, Turkey. But with many of its secrets concealed or underground, he turns to the latest 3D imaging technology to see the city as no human eye ever could.

On the outskirts of Los Angeles, in the shadow of the Hollywood sign, are the city's roughest neighborhoods. In the late 1990s, LAPD's Foothill Homicide Unit investigated hundreds of murders, but only Detective Lindy Gligorijevic was dubbed "the killer closer". Driven by the need to give her victims a voice, Lindy revisits her most shocking cases, detailing how she solved each crime, and revealing how she broke the most cold-blooded killers she ever faced. Detective Lindy knows she can't bring closure to someone who's lost a loved one to murder, but what she can get them is justice.

Bizarre Murders reveals a true and surprisingly strange crime story. These are not serial murderers evading the FBI, but Fargo-like capers with shocking twists and unusual characters.

The Biography® limited original documentary series Cultureshock takes an in-depth look at the untold stories behind watershed moments in pop culture that have had a lasting impact on our society.Produced by Meredith's Four M Studios in association with Entertainment Weekly, each episode of "Cultureshock" will shed light on the untold stories behind the big, unforgettable moments, helmed by an acclaimed director with the full participation of key players from each story.

People Magazine Investigates: Cults explores how destructive and terrifying cults can be to cult members and their families. Each episode dives deep inside a twisted American cult, building to that pivotal moment when blind worship turns violent and even deadly. From Jonestown to the Army of God, People reporters are on the front lines, revealing the untold stories of power-crazed cult leaders using mind control, sex, and violence to manipulate and dominate followers. Each episode follows People's trusted journalists as they doggedly investigate the evolution of these cults, expose their bizarre and brutal day-to-day rituals, and speak first-hand to survivors who narrowly escaped lives of misery to put their cult nightmares finally behind them.

Maritime mysteries -- old and new -- come to life in this 10-episode series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas, and oceans around the world. Innovative technology allows viewers to see what lies on the floors of large bodies of water such as the Gulf of Mexico, the Nile, the Indian Ocean, the Baltic Sea, and the Atlantic Ocean as if they had been drained. Then, in a quest to explain natural wonders and man-made catastrophes, stories tell of how vessels sank, what ancient geological formations reveal about life on Earth, where Nazi secrets now reside, and why so many continue to search for the legendary city of Atlantis.Pull the plug on the ocean to reveal hidden secrets and lost worlds. Using groundbreaking technology, breathtaking photography, and insights from top marine archaeologists, Drain the Oceans delivers penetrating new insights into the epic history of human civilization and the deepsea world, exposing sunken cities, shipwrecks, and amazing natural wonders of the deep.

NOVA Wonders takes viewers on a journey to the frontiers of science, where researchers are tackling some of the biggest questions about life and the cosmos. From the mysteries of astrophysics to the secrets of the body to the challenges of inventing technologies that could rival - and even surpass - the abilities of the human mind, these six hours reveal how far we've come in our search for answers, how we managed to get here, and how scientists hope to push our understanding of the universe even further. Along the way, we meet the remarkable people who are transforming our world and our future.

Hosted and executive produced by Grammy and NAACP Image Award winner Ice-T ("Law & Order: Special Victims Unit"), the series spotlights shocking true stories involving sex, money, murder – or a fatal cocktail of all three. Told through in-depth interviews, reenactments and archival footage, each hour-long episode delves into an edgy mystery filled with expert detective work, unexpected turns and stunning revelations.

Civilisations explores the visual culture of societies from around the globe, revealing alongside the magnificent objects made in the West the wealth of treasures created by other cultures, from the landscape scrolls of classical China and the sculpture of the Olmecs to African bronzes, Japanese prints and Mughal miniatures.

Secrets of the Lost explores magnificent mysteries found around the globe. From the ancient pyramids to the lost world of Pompeii, experts use twenty-first century technology to examine and unearth groundbreaking information about some of the most mystifying archaeological structures the world has ever known.

Across time, no group has been more guarded or more skilled at crafting a world hidden from sight than the Knights Templar. In this investigative series, a team will piece together the Knights' movements from the fall of Jerusalem to the mass burning of its members in Paris, unraveling their secrets along the way. Over four serialized episodes, our investigative team will set out to unearth the secret covert network of the Knights - an underground labyrinth nearly four thousand miles wide - and dive into the storied history of one of history's most enigmatic groups.

Historic events that forever transformed the United States.

Perfect on the outside, mental on the inside. Even the most kind-hearted people have a dark side looming. Diabolical looks at the minds of murderers with the question: "why did they do it?" Take a trip through the picture-perfect life and see the events that lead to a brutal murder. The tension builds throughout each episode as you dive deeper into the psychological workings of the murderer. With key insights from forensic psychologists and psychiatrists along with criminal profilers, a full analysis of the behavioral underpinnings and key moments in each crime will be on display. Diabolical shows how much people can conceal, until they blow.

Insects play a vital role in the ecosystem of the world. Thousands of fascinating species lurk beneath the surface of Europe and most are undiscovered and waiting to be found. A team of researchers enters the giant jungle of creatures to discover just what is beneath the soil. The little kingdom is an idyllic slice of strange beauty full of a variety of different insects --iridescent jeweled beetles, many types of bees, and other otherworldly types. Despite their tiny sizes these inhabitants play a large role in the ecosystem of the world.

Murder in the Heartland is a harrowing narrative that recounts the stories of humble Middle-American towns - and the provocative crimes that tore through them. Each town's tale is voiced by the combined perspectives of its residents, but these citizens are more than just storytellers. All interviewees were key witnesses to each of the crimes, having held critical clues to the puzzle that forever changed their lives... and their sense of "home".

Wildlife documentary series, presented and narrated by David Attenborough, exploring the planet's oceans.

Strange Evidence investigates mysteries caught on tape and uncovers the science behind some of the most bizarre occurrences ever recorded.Worldwide, 300 million surveillance cameras are watching us, on our streets, at work, and in our homes. At times, they capture images that don't seem to follow the normal laws of physics. This series investigates mysteries caught on tape and uncovers the science behind some of the most bizarre occurrences ever recorded. With a team of experts analyzing footage that seems to defy explanation, including levitating cars on a freeway, a statue that appears to move on its own, and a spontaneous burst of flames with no apparent ignition sources. But will the surveillance footage provide investigators with the evidence they need for a definitive earthly answer?

Australia is the oldest, flattest, driest inhabited continent on Earth. It's a vast landscape, shaped by epic forces that--over 180 million years--have divided it into two worlds: an arid interior covering 70% of the terrain, and a lush haven of mountain ranges spanning the entire eastern coast. Occupying this land of extremes are some of the most unique and resilient creatures on the planet, marsupials, mammals, and insects that have evolved and adapted to thrive inside Australia's arid heart and along its Great Dividing Range.

In an immersive 360-degree narrative, Ken Burns and Lynn Novick tell the epic story of the Vietnam War as it has never before been told on film. The Vietnam War features testimony from nearly 100 witnesses.

Evil Things reveals the horrifying stories of people who barely survived terrifying paranormal activity caused by possessed or cursed objects. Each twister mystery exposes the sinister secrets hiding within the most innocent items.

Solving a murder is twice as difficult when there are Grave Mysteries surrounding the victim, not just the killer. In these baffling investigations, police are forced to reconstruct the life of the victim piece by piece in order to uncover the shocking truth.

In conjunction with the first total solar eclipse in the continental U.S. in 99 years, Science Channel celebrates by presenting a definitive series on Earth's closest neighbors in the solar system, The Planets. Former NASA astronaut Mike Massimino hosts, guiding viewers through eight, hourlong episodes that detail Venus, Mars, the newly discovered Planet 9, Exoplanets and more. A best-selling author, Massimino is a veteran of two missions in the Hubble Space Telescope and four space walks. He's also credited as the first person to tweet from space.Renamed The Planets and Beyond with Season 2, Astronaut Mike Massimino continues the exploration of the planets in our solar system and beyond. From the Gas Giants to mysterious exo-planets light years away, this is the definitive series about alien worlds.

Real-life mysteries. Investigative reporting. Justice. Dateline is the long-running, award winning newsmagazine bringing viewers stories ranging from compelling mysteries to powerful documentaries and in-depth investigations. Hosted by NBC News' Craig Melvin, each episode of Dateline: Secrets Uncovered incorporates the classic elements of drama and great storytelling: good guys, bad guys, conflict with the highest stakes, suspense and resolution. Hear the chilling tales directly from those most affected and involved, including investigators tasked with cracking the case and the families confronting tragedy. In every story we tell, we help the real people who lived the events share their journeys with you.

From innocent travelers to the woods who find themselves in a frightening clash with forces not of this world, to determined investigators who deliberately seek out mysterious beings that dwell in the hinterlands, Evil Encounters delivers heart-stopping, terrifying tales of people out in nature who find themselves in the wrong place, at the wrong time, in places far from civilization where no one can hear you scream.

Few countries in South America boast have such contrast and variety. Diverse habitats such as Patagonia's bleak steppe, soaring Andean snowcaps, vast salt pans, lush rainforest around Iguazu Falls, steamy marshlands of Ibera, and grasslands of the Pampas support an astonishing range of wildlife - from penguins, whales and seals to condors, armadillos and guanacos.

In Reasonable Doubt, two investigators re-examine controversial murder cases to help the desperate families of those convicted decide if it's time to appeal... or accept the guilty verdict once and for all.

Some of the world's most incredible engineering projects now lie in ruins. These deserted places are home to extraordinary mysteries and untold secrets, and we revisit them to understand how they were built, and why they were abandoned.They were once some of the most advanced structures and facilities on the planet, standing at the cutting-edge of design and construction. Today they are abandoned, dangerous, some of them even deadly. From uninhabited cities to empty factories, these long-forgotten engineering marvels are scattered around the globe. Science Channel uncovers why some of the world's most advanced architectural achievements were eventually left behind in the all-new series Mysteries of the Abandoned.Each of the six, hour-long episodes of Mysteries of the Abandoned features stories behind engineering wonders, why they were built, and the reasons they were eventually left to crumble. Each story recalls the people who originally designed the structure, their historical significance, and why they were ultimately no longer of use. The premiere episode explores California's Goat Canyon Trestle railway, known as the 'Impossible Railroad,' that required the biggest wooden trestle bridge in the world; Ukraine's Duga, the notorious anti-ballistic missile radar, known as the 'Russian Woodpecker,' that still stands in within the Chernobyl Exclusion Zone; and the Grand Goulets Road in the French Alps, an astonishingly narrow and perilous mountain passageway.

In UFOs: The Lost Evidence, current and former government officials, pilots and astronauts come forth to share evidence of humanity's contact with the extraterrestrial.

This original CuriosityStream 3-part documentary series features stunning animations in Ultra HD 4K quality and sheds light on the kind of life that existed in the Permian, Triassic and Cretaceous periods beginning 250 million years ago.

Ancient Top 10 is documentary series that countdowns details on how ancient technology worked, how surprisingly advanced it was, and how it was kind of awesome. Location shooting, CGI, and graphics are pulled from past History series and lists are organized by themes. The stories are augmented by new entries fueled by the History archive.

Drawing on the expertise of a body language expert, linguistics professor and a criminal psychologist, some of the most famous modern-day UK crime stories are forensically examined in this exclusive ID series.

Ripped from the pages of one of the nation's top weekly magazines, People Magazine Investigates goes beyond the headlines to uncover the heart-wrenching stories of lives and families ripped apart. These are crime stories that transcended news and became part of popular culture. Interlaced within each episode are exclusive interviews with People's journalists and firsthand emotional interviews with those closest to the investigation revealing shocking twists, new evidence, and unexpected resolutions.

Europe's last great wildernesses contain a stunning and surprising explosion of life.

The stories behind what made and shaped the most notorious figures in Australian criminal history.

Join Dr. Bendor Grosvenor and Jacky Klein as they seek out the work of some of the biggest names in art, lying hidden in local museums and country houses all across Britain.Britain's publicly owned art collection contains over 210,000 paintings. But at any one time, over 80 percent of these are locked away in storage. And, among this secret treasure trove of mystery paintings are some of the finest works of art the public owns - but didn't know they had. There might even be some priceless Old Masters lost in the vaults.

Hollywood Homicide Uncovered is a documentary series that relives the intense stories of horrific homicides where a celebrity is at the center of the crime. Each hour-long episode uncovers key information and clues showing viewers the case through dramatic recreations and adding details and insight from crime experts and individuals with a direct and personal relationship to the crime. Episode subjects include Robert Blake, Phil Spector, OJ Simpson, Dorothy Stratten, Tupac Shakur and Phil Hartman.

From the moment the real space race began, it was enshrouded with secrecy and disinformation. Now reports of extraterrestrial beings on Earth, suppressed advanced technologies and expansive government cover-ups are making their way into mass consciousness. But we have all been denied the whole story by those who would benefit from our continuing ignorance.What has been hidden will become evident as the pieces of this intricate puzzle are finally put together. In Deep Space, Gaia brings together the best minds in their fields to shed new light on an extremely controversial subject which can no longer remain hidden or denied. It is up to you to evaluate the evidence and decide where you stand on the question of humanity's presence in the far reaches of the universe.

Unearthed decodes mysteries and combines scientific investigations with CGI animation to reveal the hidden secrets of iconic structures and monuments from around the globe -- ancient and present-day. The show explores how they were designed, built, used, and in some cases, lost and rediscovered. At critical points in each episode, stunning "blow apart" CGI animation deconstructs the structures to reveal hidden anatomy while exploring the secret history of each edifice, immersing us in the age and culture in which they were constructed.Archeologists travel to various parts of the world, in search of ancient secrets of mysterious civilizations. From the tallest pyramids to an underwater city, experts take viewers on an unforgettable journey.Unearthed fuses elements of engineering, history, geology, and archaeology, revealing the deepest secrets of each structure. We'll see the latest technology used to solve mysteries such as how the Parthenon still stands against earthquakes; how sticky rice was used to build the Great Wall of China; and what sacred secret lies beneath the Mayan temples of Chichen Itza.They may be older structures, but scientists and archaeologists use the latest technology including LiDAR scanning, X-ray imaging, carbon dating, and 3D printing techniques to reveal secrets of the past in ways that weren't possible before. Unearthed shows the future of science and technology are key to understanding our past, and without these developments, we wouldn't be able to unravel some of the world's greatest mysteries.

If you looked into the eyes of a killer, would you know? In American Monster, you find out. For the first time, viewers get closer than ever to some of America's most shocking and surprising crimes. Filled with never-before-seen footage of these devils in disguise, from home movie shots of them playing with their kids to musical performances at high school, from the church cook-out to the wedding video, American Monster interweaves twisting-turning stories of astonishing crimes, with 'behind-the-scenes' footage of killers at their seemingly most innocent.

A new breed of explorer has taken space travel beyond the moon to unlock and reveal first-ever views of alien worlds and cosmic bodies far beyond anyone's imagination. Space's Deepest Secrets shares stories of the men and women who pushed their ingenuity and curiosity to uncover some of the most groundbreaking findings in the history of space exploration. Hourlong episodes cover NASA's New Horizons mission to Pluto, the Hubble Telescope, the twin Voyager explorations, and other past, current and future missions and projects.

Zak Bagans is fulfilling a lifelong dream of opening a museum in downtown Las Vegas, full of the haunted, cursed objects he has been collecting through the years. Each episode of Deadly Possessions features three haunted, iconic items and their owners. They share stories of how these objects have terrorized them and, in some cases, even killed people. Bagans interviews the owners and works with them to get to the root of their "attachment", so they can free themselves… or at least escape harm from these Deadly Possessions.

Medical Mysteries is a Channel 5 documentary series about unexplained medical ailments.

Africa's rivers are the wildest places on our planet. Bursting with life, they are home to an array of wildlife who depend on the rivers for their survival.

Documentary series that deals with historical mysteries.

Beautiful series showcasing the stunning transformations that occur each year, revealing the unique processes behind them and showing how wildlife adapts to cope. Narrated by Domhnall Gleeson.

The Secret Life of the Zoo takes a look behind the scenes of Chester Zoo. Using a range of filming techniques, including micro-rigs to capture close up animal behaviour, it will explore what the animals get up to, as well as their relationships with the keepers.

Six million years ago our ancestors began to walk upright then left the trees and ventured out into the wild African savanna. For millions of years we would adapt, strengthen, and spread across the planet's harshest terrains. We withstood droughts and ice ages to not only survive, but to become the dominant species on Earth. Could we do it again?

How well do you know your housemates? Evil Lives Here tells the heart-stopping tales of people who have shared a home, with a killer. In each episode, loved ones reveal how they came to discover their significant other's evil side.

The amazing thing about nature is the number of ways it continues to surprise us - and in the case of these unique creatures, it appears we're barely scratching the surface. Spend some time in the company of nature's evolutionary mavericks.

Undiscovered Vistas is an awe-inspiring journey that reveals some of the most beautiful places in the world. Spectacular aerial vistas of cavernous canyons and lush rainforests draw viewers into an immersive natural landscape, while lyrical writing tells the stories of the nature, history and mythology that shaped the planet's geographic wonders. From the beautiful islands of the Bahamas to the majestic volcanoes of the Chilean desert, the globe's unspoiled beauty is uncovered here.

English naturalist Chris Packham explores some of the strangest natural events to be caught on camera in this docuseries. Assisted by scientists and experiments, Packham explores the secrets behind bizarre science, crazy weather and medical marvels. Using footage taken by eyewitnesses and news crews, the host attempts to decipher the truth behind each scene. Some of the incidents under scrutiny are unusual animal friendships, towns under the siege of thousands of flying insects and extraordinary mating calls that have kept people awake at night.

"Who, what, where, why and when?" are the essential questions at the heart of every homicide investigation – for detectives but also for journalists chasing the 360-degree story. Investigative correspondent Chris Hansen knows the routine all too well, having won eight Emmy awards for investigative reporting, outstanding coverage of a news story and outstanding coverage of breaking news. Now, in Investigation Discovery's all-new newsmagazine Killer Instinct with Chris Hansen, he brings his unrivaled journalistic skills and criminal insight to an enthralling new series, digging deep into the depths of a killer's mind and bringing life to some of America's most chilling and heart-wrenching homicide cases. Killer Instinct with Chris Hansen premieres on Monday, August 17 at 10/9c only on Investigation Discovery.

Behind Bars: Rookie Year follows a group of new recruits at the New Mexico Corrections Academy (NMCA) who are training or have recently joined the ranks at the Penitentiary of New Mexico (PNM). These rookies come face-to-face with rapists, murderers, and gang members who take pleasure in preying on weakness. Every new recruit hoping to join the department goes through a rigorous training program designed to test their fortitude and give them the tools needed to survive one of the most dangerous working environments on the planet. But as each day passes, the physical and emotional demands often prove too much for some, and even the best training can't prepare a rookie for the unexpected. Whether they're cadets in training or brand new on the line, the officers all wrestle with a critical life-or-death question: Is it worth it?