Ancient Aliens - Season 20 Episode 3 The Top Ten Hidden Alien Bases
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...
- Genre: Documentary, Mystery, Sci-Fi & Fantasy
- Studio: History
- Keyword: paranormal investigation, ancient aliens theory, ufo conspiracy, megalith, petroglyph
- Cast: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken