Uncover the true stories surrounding great treasures, long-held conspiracy theories, ancient relics and lost civilizations as experts analyze and investigate history's most astonishing mysteries.
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Newly opened Area 51 is investigated; police drones in Texas; medical marijuana farms.
Ballistic tests for the assassination of MLK; the mysterious Marfa Lights in Texas.
Testing lethal weapons; tunnels under Las Vegas; Internet rumors.
JFK's assassination is investigated 50 years later; a nuclear waste dump and US Quiet Zone.
Boston crime Boss Whitey Bulger's hideout; a city destroyed by a 50-year fire.
John Wayne's death is examined; Jamestown settlers in 1609; the secrets of Pensmore.
A look at whether the desire for gold is the result of extraterrestrial landings in the past.
New evidence and modern-day UFO sightings have experts rethinking Native American myths.
On November 5, 1975, a logging crew drives home after work when they suddenly encounter a UFO.
In September 1961, Betty and Barney Hill are driving home from a honeymoon trip.
Deep in the Iraqi desert, a ziggurat towers over the remains of an early civilization.
Only one Egyptian pyramid was ever constructed to look like it floats on water.
Experts explore sunken ruins and reveal new discoveries about one of the first great empires.
A prehistoric structure emerges from the sands of an English shore.
The Tower of London is a centuries-old castle used as a prison steeped in blood and intrigue.
Investigating the pattern of rocks at the bottom of Lake Michigan known as Underwater Stonehenge.
Ruins suggest Europeans arrived in Americas 1,000 years before Columbus; a dormant super volcano.
Heading to California to investigate a network for major fault lines.
Searching for evidence of a mass extinction event; investigating a Bermuda Triangle-like phenomenon.
Markings suggest a clash between prehistoric beasts; a strange lake may be home to alien life.
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