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10 Hidden Alien Bases Across the Globe (S3, E20) | Ancient Aliens | Full Episode
Ancient Aliens is counting down the top ten locations around the world that just might be hiding alien bases, including a cavern beneath the ice of Antarctica. In Season 20, Episode 3, "The Top Ten Hidden Alien Bases." Stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule #AncientAliens ...
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