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It is a legendary ancient city, said to be overflowing with gold. For centuries, explorers put their lives on the line searching for it. As the endless quest to uncover this infamous city continues, will anyone ever find it?

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In 1587, a group of settlers land off the coast of North Carolina on Roanoke Island to establish the first English Colony in America. But only a few years later, the 115 men, women and children seemingly vanish without a trace, leaving only cryptic clues. The search to find out their fate has endured for over 400 years. Can new technology finally tell us what happened to the Lost Colony of Roanoke?

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It's one of the most famous prehistoric monuments on Earth. A mysterious arrangement of stones that have adorned the English countryside for millennia. But to this day, nobody knows how the landmark was built or why. Can modern technology finally unlock its secrets? What is the true purpose of Stonehenge?

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One of history's most notorious pirates, Blackbeard, is said to have had a treasure worth millions of dollars. After centuries of searching, the legendary hoard remains missing. As new evidence is unearthed, the mystery endures: what became of Blackbeard's lost treasure?

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Alcatraz is one of the most notorious federal penitentiaries in American history. Only the most violent and difficult prisoners in the U.S. were sent there. The conditions were so harsh that murder, insanity, and escape attempts were frequent. Alcatraz was reputed to be escape proof; yet in 1962 three men managed to do the impossible and to this day, they have never been found. This mystery has plagued "the Rock" for decades. MysteryQuest investigates the famous case to determine whether they could have survived the icy waters of San Francisco Bay. New evidence and witness testimony may finally reveal the true story behind the decades-old mystery that has captured the world's imagination.

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As a new year of investigations begin on Skinwalker Ranch, members of the team confront a secret that Dr. Travis Taylor has had to keep from them for the past two years before conducting an aerial experiment together that reveals shocking and disturbing phenomena.

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The team launches an incredible nighttime 200-drone light show experiment above the Triangle and the East Field leading to a startling sighting in the sky and new data that points toward possible answers deep inside the mysterious Mesa.

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After discovering new evidence of massive metallic objects buried beneath the Mesa, the team conducts an experiment at the Triangle that leads to one of the most shocking revelations ever seen on Skinwalker Ranch.

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The team turns their focus back to the mesa and almost immediately gets more evidence of something buried deep within it. And Brandon returns to the ranch with Utah's Attorney General who is eager to find out who is monitoring the ranch.

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As the team begins drilling in search of a metal object buried in the Mesa, they also perform a new experiment at the Triangle that causes startling UFOs to appear on Skinwalker Ranch.

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When a former ranch investigator and government official returns to help the team with a new experiment, it leads to a shocking revelation.