Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemasons | Ancient Aliens

From mysterious signals believed to come from deep space to shocking UFO encounters and unexplained evidence on Earth, this compilation reveals the most mind-bending alien moments you won’t believe we caught on camera. See more in this Ancient Aliens compilation. Watch an all new season premiering Friday, August 29th at 9/8c. "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

Courtesy of HISTORY on YouTube. Watch on YouTube ↗

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