Josh answers questions from viewers, reveals new developments in intriguing unfinished investigations, and pulls back the curtain to reveal what really happens behind the scenes in this special episode of Expedition Unknown.

Host Josh Gates counts down his Top 10 most dangerous adventures from Season 1.

Aired as a Special episode. 2nd part of 2 part Columbus during season 2. Included in DVD set as part of Season 2: In part 2 of a two-part special, Josh travels from the Dominican Republic and Spain in an attempt to solve the looming mystery of where the bones of Christopher Columbus are truly buried. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

In this special legends episode, Josh, along with several historians, tell the true and unfiltered story of exploring pioneers Meriwether Lewis and William Clark who single-handedly mapped the uncharted American frontier, but not without scandal on their expedition. Later, he takes a look at the dangerous details of building the Transcontinental Railroad Also, he exposes secrets of Wyatt Earp, either the greatest lawman or con man in the Wild West.

Crazy outtakes and never-before-televised footage are compiled in this special episode of the weirdest, wildest and most hilarious off the rails moments captured on camera during the first season of Expedition Unknown.

Josh embarks on a journey around the world to uncover mysteries about Christopher Columbus. First, Josh looks for Columbus' legendary ship, the Santa Maria, and later ventures to find the real remains of the explorer. This episode is a condensed special using footage from 2 previous episodes of Expedition Unknown about Christopher Columbus. S02E07 - Secrets of Christopher Columbus - December 2, 2015 S02E08 - Columbus Unearthed - December 9, 2015

Inspired by his adventures while filming Expedition Unknown, Josh shares tips on the best way to travel in this special episode. Josh also features bonus scenes and hilarious outtakes from some of his recent expeditions.

10 extreme adventures from filming are shared by Josh and the crew.

Visiting remote locations on Earth and quizzing tourists and locals with trivia based on adventure, history and humor.

Diving into the Lajas Reef off Panama's coast in search for treasure chests on the sunken flagship of pirate Captain Morgan. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

The lost city of the Khmer Empire in Cambodia; search for a mystical relic that gave its God King power to incinerate his enemies. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Investigating the giant geoglyphs drawn into earth by ancient Nazca tribes and finding the true meaning behind the mysterious tracings. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh unearths human skulls and ancient Mayan sacrificial alters in the caverns; the fall of the Mayan Empire. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh hunts down new evidence on the iconic disappearance of Amelia Earhart; uncharted tribal lands of Papua New Guinea. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Ancient shrines hidden in the mountains; underground tunnels across Japan in search for the missing mystical Honjo sword. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

The legendary Thomas Beale Treasure in the Virginia backcountry; Josh takes a detour to Philadelphia. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Trekking the stone-paved Inca Trail in search of the undiscovered City of Gold. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

The search for the ancient cursed Golden Bell of King Dhammazedi. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Go behind the scenes with Josh Gates' crew while they film Expedition Unknown and navigate through technical logistics, practical jokes and hair-raising adventures. Also, see never-televised bonus footage from Josh's craziest experiences.

Josh Gates treks high into the Sky Caves of Nepal in search of the origins of the Shangri-La myth. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh travels to the UK and Norway to unlock the secrets of the Viking Sunstone; a crypt in a Nordic church. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Journey across the American Midwest in search of Jesse James to debunk myths; rappelling off a cliff. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

History's most expensive stolen object, the Amber Chamber; retracing the steps of Nazi soldiers. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Exploring the legendary Sky Caves in the remote Mustang region of Nepal; the fabled heaven on earth, Shangri-La.

Josh travels to Mongolia's 'Forbidden Zone' to find Genghis Khan's tomb.

Josh heads to Japan to explore the sunken ruins called Japan's Atlantis.

Josh travels worldwide to uncover the myths behind Christopher Columbus.

Josh Gates heads to Europe to expose the last secrets of the Third Reich. The lost fortune of a Nazi war criminal draws Josh to Austria, where he may need to dive deep to find treasure. Then, he meets a researcher who may have made a historic find that could answer the question: How close was Hitler to having an atomic bomb?

Beginning in Kathmandu, Josh Gates heads high into the Himalayas of Nepal to obtain scientific evidence of the legendary Yeti. This time his mission is personal, and it will take him into uncharted territory.

In part two of his hunt for the elusive Yeti, Josh Gates ascends higher into the Himalayas to explore caves, examine ancient artifacts and investigate the mystical ties the legendary creature holds with the Nepalese people.

The hunt for the Yeti continues as Josh Gates' quest takes him from the frozen slopes of Mount Everest to the isolated forests of Bhutan, where Josh uses bait to force a more personal encounter with the creature.

In the finale of Josh Gates' hunt for the Yeti, he rafts into the remotest corners of Bhutan to capture some of his best evidence yet of the reclusive creature. Then, Josh returns to the USA, where all of his samples are analyzed to answer the question...is the Yeti real?

Hours of footage are filmed for every episode of Expedition Unknown and some truly wild and zany moments end up on the cutting room floor. Now, Josh Gates compiles the best unseen footage, expanded scenes and never-before-televised moments from his season two adventures into one off-the-rails special.

Every episode of Expedition Unknown is a quest for discovery, an opportunity for extraordinary adventures and maybe, just maybe, a chance to find a fortune. In this one-hour special, Josh Gates counts down his 10 greatest treasure hunts and shares expanded scenes from his wildest expeditions.

Enhanced pop-ups take you behind the scenes as Josh Gates travels to Africa's Kalahari Desert searching for a lost city. During his epic road trip, Josh follows a cryptic map and joins a groundbreaking search to find the ruins using LiDAR scanning technology.

Josh Gates counts down his top ten most exhilarating investigations, including interviews with crew members and behind-the-scenes moments from the most thrilling, most frightening and most fun exploits during season three of Expedition Unknown. (www.travelchannel.com/shows/expedition-unknown/episodes/tbd-repack-1)

Josh Gates plays his humorous traveling trivia game in Greece; behind the scenes extras, expanded scenes and highlights from his investigation into the lost civilization of the Minoans.

Josh quizzes fellow travelers as he explores the globe, and anyone, anywhere could be his next contestant.

Josh Gates plays game show host as he presents highlights, expanded scenes and behind-the-scenes extras from his investigations into two Australian legends.

Josh Gates scours England, Wales and Scotland, wading through history and legend in search of evidence that King Arthur, the ultimate knight in shining armor, truly existed. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates journeys across England to uncover the true stories behind the legendary Robin Hood, including underground tunnels that Robin used to escape confinement and what appears to be Robin's final resting place. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Lost wooden fragments of the True Cross of Jesus Christ. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh joins a treasure hunt searching for a modern-day treasure; the clues of the treasure's location are found by following a cryptic poem, leading him deep into the harsh Rocky Mountains. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates ascends higher into the Himalayas to explore caves, examine ancient artifacts and investigate the mystical ties the legendary creature holds with the Nepalese people. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates treks north of the Arctic Circle to search for the DNA of the long-extinct woolly mammoth. The hunt takes him to a mile-wide sinkhole in the Siberian permafrost as well as a black market mining camp where tusk hunters dig for mammoth ivory.

Expedition Unknown has gone on incredible adventures, but the revelations don't stop when the cameras turn off. Josh Gates revisits his most exciting discoveries and reveals new developments in this one-hour special.

After three seasons of traveling the globe in pursuit of excitement and discovery, Josh Gates counts down his top 10 greatest adventures -- and misadventures. He also shares a rare glimpse behind the scenes and never-before-seen moments.

Josh Gates shares his favorite moments from season three that didn't make the final cut, including never-before-seen footage, expanded scenes and more.

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates ventures into the mysterious cloud forests of Ecuador's remote central highlands in search of the all-powerful mummy of the last Inca king, Atahualpa. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh travels to the Philippines searching for Yamashita's Gold, a treasure that has been hidden since World War II; when the cave he's exploring quickly fills with water, he must escape with a piece of history before he's trapped. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates travels the coast of Florida and to the newly opened country of Cuba in search of sunken treasure from a fleet of Spanish ships sunk in 1715. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates travels across the USA, giving contestants a chance to win up to $500 as they test their knowledge about the country's greatest explorers and most notorious outlaws.

From infamous kings to legendary thieves and notorious pirates, Josh Gates jumps over the pond to test British contestants on their own rich history for the chance to win $500.

From the Mayans of the Yucatan Peninsula to a civilization that disappeared so suddenly they have no name, Josh Gates travels to Texas to quiz contestants on empires that vanished from history for a chance to win cold, hard cash.

Josh Gates takes his quiz show to the Old West with trivia questions about historic treasures that have never been found -- at least not yet! Josh has a cash prize for his clever contestants plus a big bonus for those playing along from home: never-before televised footage from his own treasure hunts...all in this episode of Global Game Show: Hidden Treasures!

Part 1 of a special 4 part mini season. A once-in-a-lifetime visit to NASA; evidence of aliens in Chile; a UFO video captured by the military; the largest telescope on Earth. A panel consisting of Josh and his crew discuss the information and events from the first part of the "Hunt For Extraterrestrials" mini-series.

Part 1 of 4 After Show specials. A panel consisting of Josh and his crew discuss the information and events from the first part of the "Hunt For Extraterrestrials" mini-series.

Part 2 of a special 4 part mini season. Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennia ago. Then, he goes to the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space.

Part 2 of 4 After Show specials. The hour-long episode will revisit Gates' journey in a candid, behind-the-scenes forum, as Gates and his team dig deeper into their astounding findings, further analyze key evidence and reveal never-before-seen footage from the expedition.

Part 3 of a special 4 part mini season. The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history. Then, in England, he investigates the infamous case that has become known as "Europe's Roswell."

Part 3 of 4 After Show specials. The hour-long episode will revisit Gates' journey in a candid, behind-the-scenes forum, as Gates and his team dig deeper into their astounding findings, further analyze key evidence and reveal never-before-seen footage from the expedition.

Part 4 of a special 4 part mini season. Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas. Then, he visits with a researcher who may have new information on the mother of all UFOs.

Part 4 of 4 After Show specials. The hour-long episode will revisit Gates' journey in a candid, behind-the-scenes forum, as Gates and his team dig deeper into their astounding findings, further analyze key evidence and reveal never-before-seen footage from the expedition.

Josh Gates takes a break from his travels to show a few of his favorite people, places, experiences and eats from his many expeditions. He also shares never-before-aired footage and his most meaningful moments between him and his crew.

Josh Gates reveals footage of six legends from around the world. Later, he finds pieces of evidence to determine if they are fact or fiction.

Josh Gates tries out a lot of new things while filming: new techniques, skills and even new foods - with varying degrees of success. Now, he shares his best victories and biggest blunders, along with never-televised bonus footage.

Josh chats with his crew and special guests about his two-part investigation into the great women of ancient Egypt; the round table discussion features never-before-seen footage, behind-the-scenes moments and new revelations.

Josh and his team dig deeper into their findings regarding Nefertiti and Cleopatra, while analyzing key evidence and revealing never-before-seen footage from the expedition to Egypt.

Josh Gates' Global Game Show goes all over the planet but this time he's going out of this world by giving his contestants the opportunity to win big on the topic of extraterrestrials. Players at home can win a big prize too -- a bonus look at footage that never aired in the original Expedition Unknown episodes.

"Pyramid of Legends" After show with experts and crew. Josh Gates and his crew reconvene at "Expedition Unknown" headquarters to delve deeper into the investigation of the lost Maya city of El Mirador and the tomb of the Snake Kings.

From submerged treasures to lost civilizations, Josh Gates quizzes his contestants on sunken mysteries from all over the world.

Josh Gates and his crew reconvene at "Expedition Unknown" headquarters to delve deeper into the investigation of the lost Maya city of El Mirador and the tomb of the Snake Kings.

Josh Gates goes on a globe-trotting quest to test people's knowledge on the Nazis and their secrets for a chance to win a huge cash prize.

Josh Gates sets out on a globe-trotting investigation to find out how the Vikings became so powerful. He also explores the possibility that these fearsome warriors sailed to the United States over 500 years before any other European.

Josh Gates shares hilarious bonus moments from his season four adventures -- from the good and the bad to the downright weird.

Josh Gates seeks out contestants to test their knowledge of unlucky adventurers who fell victims to brutal curses. The contestants could win big cash -- or tempt fate and go home with nothing at all in this round of Global Game Show.

Seeking evidence of the afterlife, Josh Gates enters an ancient Roman "Gate to Hell" that still claims victims. In New York, a medical doctor shows how consciousness survives death. In California, a medium shocks Josh with a message from beyond.

Part 1 of 4 After Show specials. Behind-the-scenes secrets direct from HQ are featured, including a spiritual medium who speaks with the dead, unseen footage from Josh's Gate to Hell dive, and a medical doctor who claims evidence of an afterlife.

Josh talks with Dr. Deepak Chopra about reincarnation, explores a path to Islamic paradise, and faces a man possessed by an evil spirit.

Part 2 of 4 After Show specials. Josh shares exclusive footage from an actual exorcism along with real-life exorcist Brother Carlos Oliviera. Josh undergoes a past-life regression through hypnosis and reveals incredible details of a former life at sea.

From ancient tombs to the latest bio-technology, humans have always been obsessed with cheating death.Josh visits a tribe in Indonesia where people live with mummies, and a cryonics lab in Russia at the cutting edge of freezing humans for the future.

Part 3 of 4 After Show specials. Josh shares a footage and insights into his journey to the brink of the afterlife after drinking a mysterious drug concocted by Amazonian shamans. Also, Josh meets the leader of a movement attempting to beat death through technology.

A shaman in the Amazon takes Josh on an ayahuasca trip to the brink of the Afterlife. A team of investigators lead Josh into one of the world's most haunted places.

Part 4 of 4 After Show specials. Josh reveals exclusive footage and personal insights from his hunt for ghosts with a team of investigators on board the RMS Queen Mary. After his life-changing experience with Ayhuasca, Josh gives his verdict on his own brushes with the afterlife.

Josh traces the Vikings' westward expansion from the volcanic landscape of Iceland to Greenland and North America; he strives to determine if they landed in the United States more than 500 years before any other Europeans. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh goes Down Under to search along Australia's infamous Shipwreck Coast for the missing Mahogany Ship; confirming the vessel's existence could rewrite Australia's history. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh investigates the theft of one of the most iconic pieces of Hollywood memorabilia of all time -- the ruby slippers worn by Judy Garland in the 1939 classic movie, The Wizard of Oz. Extra Finds: enhanced re-broadcasts of popular Expedition Unknown episodes featuring pop-up trivia, behind-the-scenes insights, deleted scenes, and fan tweets

Josh Gates and his cameraman, Evan B. Stone, count down their top ten close calls and strange situations, featuring bonus, behind the scenes footage from Expedition Unknown's investigations.

Josh Gates hits the streets of Las Vegas, NV, to quiz contestants about some of the world's greatest architectural and engineering achievements.

Josh Gates challenges contestants on all things from the spirit world for a chance to win some real world cash.

Josh Gates offers up the show's biggest cash prizes yet at the Highland Games in Scotland. The stakes are high as Josh tests his contestants' knowledge, then competes with them in a game of physical skill for a chance at a whopping $1,000.

Josh Gates quizzes clever contestants about all sorts of animals, living and extinct, for the chance to win $500.

Josh Gates pushes into new territory as he challenges contestants around the world with trivia about history's greatest explorers.

It's a challenge of biblical proportions as Josh Gates quizzes contestants on their knowledge of one of the most influential religious figures in the world.

Josh Gates offers up a big bundle of cash as he challenges contestants on their knowledge of the planet's most spectacular sites.

Money will be flowing like rum as Josh Gates quizzes travelers across the globe about the scoundrels of the seas -- pirates, privateers and buccaneers. The contestants' swashbuckling knowledge could land them $500 in loot.

Discovery will go live from Egypt with ‘EXPEDITION UNKNOWN: EGYPT LIVE,’ a special 2-hour event airing “Live to Both Coasts” that will take viewers through a network of underground tombs and open a sealed, ancient sarcophagus for the very first time.

Josh Gates dives into the Lajas Reef in search of treasure chests on the sunken flagship of the legendary pirate Captain Henry Morgan; he heads to Louisiana to uncover the mystery of real-life buccaneer Jean Laffite.

Josh Gates treks up the Andes and into the Peruvian rainforest to find a mythical city of gold; he ventures into the mysterious cloud forests of Ecuador in search of the all-powerful mummy of the last Inca king.

Josh Gates uncovers secret Nazi hideouts and investigates theories about Adolf Hitler's true fate in Argentina; he goes on the hunt for the hidden treasure of Nazi general Erwin Rommel.

Josh Gates scours the Virginia backcountry in search of the legendary Thomas Beale treasure; he sets out for gold-rush country to hunt for the lost fortune of a notorious Montana sheriff.

Explorer Josh Gates is diving into shark infested waters to investigate one of the ocean's greatest mysteries what drove the sixty foot long Megalodon shark to extinction?

Josh Gates and his crew gather, along with archaeologists Dr Oren Gutfeld, to unravel more of the mysteries of the Dead Sea Scrolls.

Josh Gates and his expedition team reconvene once more to dig deeper into their search for the treasure of the Copper Scroll, and reveal more discoveries and exclusive, never-before-seen footage.

Josh Gates heads to an active dig site in Egypt, where he joins famous archaeologist Dr. Zahi Hawass on the cusp of an incredible discovery: the mummy of an ancient High Priest.

At EXU Headquarters, Josh Gates is joined by historian Gary Sterne and military veteran Captain Dale Dye to analyze unseen footage, unravel new insights, and dig into more secrets of D-Day.

Josh Gates and Expedition X investigators Jessica Chobot and Phil Torres dig into unseen footage captured in their investigations into disappearance of Northwest Flight 2501 and the Mothman.

Alongside fellow paleontologists and shark experts, Josh Gates dives into shark-infested waters to find out what happened to the mighty Megalodon. *This is a re-run of the episode "Expedition Unknown: Megalodon" (s00e110) just with a different name.*

Josh Gates and the Expedition X team gather to discuss their Cambodian adventure, and Josh goes in depth on his African trip to investigate the origins of humanity.

Josh Gates and the Expedition X team are joined by Ghost Nation's Jason Hawes to delve into strange occurrences on The Island Of The Dolls. Josh continues his look at the first humans with a hands-on demonstration of tool making.

Josh Gates digs into the night's Expedition Unknown and Expedition X, including never-before-seen footage from the X team’s trip into Mammoth Caves and in-depth interviews with guest expert investigators about Josh's search for Boudica's lost treasure.

Josh Gates and the Expedition X team present new evidence of extraterrestrials from their investigation in Mount Adams, Washington. Then, Josh and his crew dive deeper into the hunt for the Buzzard's hidden pirate treasure.

Josh Gates and the Expedition X team review ghostly evidence and never-before-aired footage from the jungles of Brazil. Then, Josh and his crew delve into theories of what causes so many mysterious occurrences in the Bermuda Triangle.

The search for Christopher Columbus continues with finding his missing remains. Gates follows his five-century voyage across two continents to search for his final resting place believed to be at Columbus Lighthouse in Santo Domingo, Dominican Republic or at Cathedral of Saint Mary of the See in Seville, Spain, both countries laying claim to his bones.

Josh visits Portugal and Haiti to discover whether Christopher Columbus was history's greatest hero or villain. He also hopes to find the remnants of Columbus' legendary flagship, the Santa Maria.