Ancient Aliens: Season 21
EP1 - The Top Ten Extraordinary Discoveries
EP2 - The Top Ten Mysterious Monoliths
EP3 - The Top Ten UFO Crashes
EP4 - The Top Ten Unexplained Technologies
EP5 - The Top Ten Secret Projects
EP6 - The Top Ten Mysterious Mountains
EP7 - Mysteries of the Aztecs
EP8 - The Glowing Orb Phenomenon
EP9 - The Legacy of J. Allen Hynek
EP10 - The Volcano Factor
EP11 - The Birdman Mystery
EP12 - The Abduction Files
EP13 - The Giants
Ancient Aliens
First Air Date: 2010-04-20
Original Language: EN
Vote Average: 7.0
TMDB-ID: 32608
IMDB ID: tt1643266
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