Ancient Aliens — Season 20
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
Episodes
The Top Ten Alien Influencers
The Top Ten Extraordinary Creatures
The Top Ten Hidden Alien Bases
The Top Ten Scariest Encounters
The Top Ten Alien Codes
The Top Ten Alien Disasters
Secrets Of The Sumerians
The UFO Superhighway
Mysteries of Scotland
Mystery of the Stone Spheres
Mysteries of the Maya
Unlocking the Stargates
The Whistleblowers
The Search For Extraterrestrial Intelligence
Jacques Vallée: UFO Pioneer
The Teachers
Egypt's Giant Tombs
The Linda Moulton Howe Files
The Chosen
Resurrecting Puma Punku