Ancient Aliens S21E6 · The Top Ten Mysterious Mountains

Ancient Aliens

Season 21 · Episode 6 · The Top Ten Mysterious Mountains · 60 min

Ancient Aliens is counting down ten mysterious mountains that are notorious for otherworldly phenomena. From a summit in Sri Lanka that is said to be a portal to other worlds, a volcano in Washington that was at the center of a famous UFO sighting and a mesa in New Mexico believed to contain an alien base. Could these strange peaks provide evidence of extraterrestrial contact?