Ancient Aliens
The Top Ten Hidden Alien Bases (20x3)
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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, a lake in China that is a hotspot for UFOs, and a pyramid under the slopes of Mt. Denali in Alaska. Are these locations proof that extraterrestrials are not only visiting our planet… but are hiding in plain sight?