Ancient Aliens: Season 20
EP1 - The Top Ten Alien Influencers
EP2 - The Top Ten Extraordinary Creatures
EP3 - The Top Ten Hidden Alien Bases
EP4 - The Top Ten Scariest Encounters
EP5 - The Top Ten Alien Codes
EP6 - The Top Ten Alien Disasters
EP7 - Secrets Of The Sumerians
EP8 - The UFO Superhighway
EP9 - Mysteries of Scotland
EP10 - Mystery of the Stone Spheres
EP11 - Mysteries of the Maya
EP12 - Unlocking the Stargates
EP13 - The Whistleblowers
EP14 - The Search For Extraterrestrial Intelligence
EP15 - Jacques Vallée: UFO Pioneer
EP16 - The Teachers
EP17 - Egypt's Giant Tombs
EP18 - The Linda Moulton Howe Files
EP19 - The Chosen
EP20 - Resurrecting Puma Punku
Ancient Aliens
First Air Date: 2010-04-20
Original Language: EN
Vote Average: 6.9
TMDB-ID: 32608
IMDB ID: tt1643266