Experts explore a monster graveyard discovered at a mysterious site in the Gobi Desert, and this groundbreaking find contains the treasures of the alien beast.
When a strange, red plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft originates from Nazis or extraterrestrials.
The Nazi war machine plundered every country it occupied, stealing millions of artworks and amounts of gold. This episode investigates what Hitler's plans were.
The guys team up with a chef to see if a dishwasher and a car hood can be used to cook a meal; the team tests tryptophan and things that may taste like chicken.
Rob goes on a hunt for a grave that could reveal the dark secret of America's industrial past; Robs uses technology to find out why a lake is disappearing.
Rob searches for tunnels in Denver's airport and capitol building to examine rumors of a secret group; Rob tries to uncover secrets of a serpent-shaped mound.
Rob Nelson goes into a cave to gather evidence of a mass extinction; an investigation goes underway about phenomenon that is responsible for missing ships.
Rob investigates the rumors of an underground escape passage used by Al Capone; Rob tries to uncover who or what created a vast landscape of earthen mounds.
Rob Nelson examines markings that could suggest a violent battle between prehistoric beasts; Rob investigates California lake that could be home to alien life.
Rob investigates ancient ruins that suggest Europeans got to the Americas before Columbus; Rob visits a dormant volcano in California that shows signs of life.
Rob investigates major fault lines that are capable of starting a mega-quake; Rob explores a sinkhole that some think leads to the center of the Earth.
Investigators study the truth behind the Ark of the Covenant's apparent theft by Roman forces who allegedly took the sacred artifact from its resting place.
Ancient scriptures describe the Ark of the Covenant as possessing a force with the capacity to kill; a team of archaeologists trace the ark's destructive path.
A team of archaeologists investigate sacred sites and ancient tombs to retrace the possible journey of the Ark of the Covenant, hidden by the prophet Jeremiah.
The Knights Templar are believed to have located and seized the Ark of the Covenant centuries ago; expert historians follow the trail of this elusive order.
Ark of the Covenant may have been stolen by King Solomon's son and taken to Ethiopia thousands of years ago; archaeologists uncover the lost relic's journey.
A Welsh farmer stumbles upon a 2,000-year-old chariot buried in the sand, which leads historians to new theories about one of Britain's most violent periods.
Ark of the Covenant may have been stolen by King Solomon's son and taken to Ethiopia thousands of years ago; archaeologists uncover the lost relic's journey.
A Welsh farmer stumbles upon a 2,000-year-old chariot buried in the sand, which leads historians to new theories about one of Britain's most violent periods.
The Knights Templar are believed to have located and seized the Ark of the Covenant centuries ago; expert historians follow the trail of this elusive order.
Investigators study the truth behind the Ark of the Covenant's apparent theft by Roman forces who allegedly took the sacred artifact from its resting place.
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