Ancient Aliens
Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history.
Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history.
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Giorgio Tsoukalos looks back at the top 10 reports of encounters with strange and mysterious beasts.
The top 10 locations around the world that may be hiding alien bases, including a lake in China.
Counting down the top 10 scariest encounters that might be evidence of extraterrestrial visitation.
Counting down the top 10 alien craft, from V-shaped objects to orbs of light to flying saucers.
"Ancient Aliens" is looking at alien petroglyphs; from strange, human-like figures to flying craft.
Counting down 10 mysteries of the deep, from sunken continents to ruins on the ocean floor.
Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history.
Giorgio Tsoukalos looks back at the top 10 reports of encounters with strange and mysterious beasts.
The top 10 locations around the world that may be hiding alien bases, including a lake in China.
Counting down the top 10 scariest encounters that might be evidence of extraterrestrial visitation.
Counting down the top 10 alien craft, from V-shaped objects to orbs of light to flying saucers.
"Ancient Aliens" is looking at alien petroglyphs; from strange, human-like figures to flying craft.
Counting down 10 mysteries of the deep, from sunken continents to ruins on the ocean floor.
Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history.
Giorgio Tsoukalos looks back at the top 10 reports of encounters with strange and mysterious beasts.
The top 10 locations around the world that may be hiding alien bases, including a lake in China.
Counting down the top 10 scariest encounters that might be evidence of extraterrestrial visitation.
Presidential encounters with UFOs can be found going all the way back to George Washington.
New footage from a Navy helicopter may indicate a connection to geoglyphs in the Atacama Desert.
Element 115 is the fuel source for an alien spacecraft reverse-engineered by the U.S. government.
Showing1to20of988results