Explore the invisible world of aqueducts and ancient catacombs beneath the streets of Rome

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Explore the secrets of a deadly salt mine in Poland

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Battling an exploding rat population in the tunnels below Boston

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Modern mummification combines modern science with ancient ritual

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Tracing the development of modern embalming and mummification

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When do we form our earliest memories?

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Discovery takes a look at disturbing sleep disorders like sleep terrors and sleep walking

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The incredible story of BMX free-styler Mat Hoffman

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A mountain climber recalls the day he narrowly escaped death

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Ghost hunting at a castle in Scotland

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Understanding the need to believe in the paranormal

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A quest for the exotic draws some to tales of the paranormal

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Using science to investigate the paranormal

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Meet the man who holds the record for holding the most World Records

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The King of Sand seeks to set a new World Record with the world's largest sand castle

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Supermax Part 1: Life inside Supermax prisons

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Supermax Part 2: Life inside Supermax prisons

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A canyon hiking trip turns into a nightmare for five Boy Scouts and their leaders

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I Shouldn't Be Alive: A weekend of fishing for five friends turns into a primal fight for survival

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American Gangster Part 1: The birth of the Mafia in America

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American Gangster Part 2: The rise of the Mafia

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What's it like being a captain on Deadliest Catch? Captain Colburn tells us all about it.

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American Gangster Part 3: Bootlegging, jazz and the Hollywood gangster

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American Gangster Part 4: The Mafia lights up the silver screen

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Two scuba divers are left stranded in an ocean full of danger

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A father and son rafting trip in Alaska turns treacherous.

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A canyon hiking trip turns into a nightmare for two brothers.

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Eight men begin the dream of summiting Everest.

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Climbers continue their quest to climb the highest point on the planet.

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More sleepless nights and drama as they climbers have five days left to conquer Everest.

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Tough decisions abound as the climbers deal with Everest's devastating swings of mood.

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High in the death zone and the teams are feeling summit fever.

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Climbers face extreme altitude and tough desicions in the final episode.

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I Shouldn't Be Alive: A trip for two former college sweethearts becomes a fight for survival

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I Shouldn't Be Alive: Two climbing friends meet disaster in Alaska

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Astronaut Joe Kosmo discusses the early days of the space program, and the challenges they faced desigJning space suites for the Mercury, Gemini, and Apollo missions.

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NASA Flight Director Gene Krantz remembers the drama that was the Apollo 13 mission, and how they brought the crew home safely.

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James Cocker discusses the challenges NASA faced deploying the Hubble Space Telescope, and how they overcame them.

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Astronaut Al Bean discusses walking on the moon during the Apollo Project, and why it is important that he paint those experiences

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Astronaut Shannon Lucid discusses being one of NASA's first female astronauts, and the tragic flight of the Space Shuttle Challenger.

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Is a retired US aircraft carrier haunted by spirits of the past?

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Buried treasure lies underneath the streets of New York.

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Uncovering the truth about Area 51.

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It's Shark Week on Discovery Channel, so this week's podcast is a Discovery shark classic!

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Go inside the fast and dangerous world of street racing.

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Frank Mundus is widely considered to be one of the world's greatest shark hunters. Learn about the man in his own words in this Discovery podcast.

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A helicopter crashes in a volcano -- Rescue attempts failing, lava flowing -- Alone in the fatal fumes, each man makes his own bid for escape, thinking the others are dead -- But are they?

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These bugs are some of the most dangerous killers in the world.

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If we could trap the sun's energy on Earth for one day, we could satisfy humanity's power needs for 30 years. With a core heat of 30 million degrees and giant flares that can be even hotter, the sun is the power plant of our solar system.

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The process of separating conjoined twins can be an incredibly complex and challenging endeavor.

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Ancient myths are full of larger-than-life men of grand stature. But new evidence brings forth the question - were the stories true?

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Alaska is a land of extremes -- the biggest, coldest, windiest, wildest. Its climate and land forms are shaped by two oceans, the moving earth and frozen polar air. Through it flows the Yukon River, perhaps North America's last untamed river.

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Hear the story of exceptional character who meet, endure, and conquer the challenge of a stress-filled, dangerous existence, locked inside the world's most lethal weapon - a nuclear powered ballistic submarine; a boomer.

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In every conflict since World War II, the Navy's aircraft carriers have been the United States' ambassador of naval might. Examine these vessels, their crews, and the incredible arsenal they carry, including the aircraft that call these flat-tops home.

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In an age when cosmetic surgery has become so popular, more people are choosing to have multiple, costly and potentially dangerous procedures performed in just a few years. Find out what drives this need for surgical improvement.

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Soldiers recall being trapped behind enemy lines during the first major battle of Desert Storm.

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The anatomy of shark bites, tiger bites and bear attacks- all predators with businesslike teeth, capable of shredding human flesh. This featured assassin sports fangs as well, with lethal venom ejected from them that fells even the largest prey.

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What makes some people superstars? Why do we chew faster when there's music in the air? How does sunshine provide pleasure, cure depression or change molecules to Vitamin D? These and other answers begin to explain human beings.

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Examine clues to the lives of ancient societies from the most awesome of man-made structures. From religious rites of the Egyptians to chilling sacrificial practices of the Mayans and Aztecs, explore the pyramid's pivotal role in civilization.

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Enter the extreme world of skydivers, big wave riders and wing walkers to discover what pushes these thrill-seekers to the limits of human endurance. Experience the adrenaline rush and learn the vital role this behavior plays in human culture.

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"Understanding: Extraterrestrials" reveals what NASA missions have discovered about other worlds, and compares popular culture's depictions of aliens with the theories of scientists.

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Viewers watch as three individuals in search of their dreams are forced to confront their worst nightmares. Chris Houser, Baltimore City police officer, Joan Murray, bank executive and passionate skydiver, and Trevor Snowden, professional snowboarder.

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Track DNA evidence that shows how all humans may have come from one place. Follow the path from Africa and the Middle East into Asia. Forensic evidence proves that humans may all have come from the same genetic mother.

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Track DNA evidence that shows how all humans may have come from one place. Follow the path from Africa and the Middle East into Asia. Forensic evidence proves that humans may all have come from the same genetic mother.

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A Navy Seal is on a mission to find the world's most sinister weapons.

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A Navy Seal is on a mission to find the world's most sinister weapons.

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Unsolved History unravels the secrets behind the world's most valuable diamonds.

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