Ancient Aliens S20E3 · The Top Ten Hidden Alien Bases

Ancient Aliens

Season 20 · Episode 3 · The Top Ten Hidden Alien Bases · 42 min

Counting down the top 10 locations around the world that may 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 Mount Denali...