UFOs: The Lost Evidence
Evidence suggests contact with aliens may have influenced humankind and many of its sacred sites.
Evidence suggests contact with aliens may have influenced humankind and many of its sacred sites.
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Atlantis is one of the most famous disappearances of all time.
In 2014, Malaysia Airlines flight MH370 vanishes; rescue crews search its last known position.
New discoveries about an abandoned system of caves that was the meeting place of a secret society.
Haunted prison stands in ruin today, and experts reveal evidence of ghostly secrets hidden within.
A vast network of subterranean bunkers in the American west was home to power to destroy nations.
Buildings on an island near Greece provide evidence of a group that was forbidden to leave.
Experts reveal the cataclysm that caused people to desert a town in South Africa.
Experts investigate the secrets and ghostly stories of a one-time fairytale castle.
Secrets of gambling mecca Las Vegas include the city's connection to organized crime.
Investigating the possibility that aliens helped construct pyramids and other earthly monuments.
American Nazis hold rallies at Madison Square Garden in the 1930s and battle the FBI.
Facts about America's Founding Fathers, including which one helped in the nation's biggest cover-up.
Inmates from the '62 Alcatraz escape; a raging sandstorm; Kansas bunker; less lethal.
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.
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