Season
- Season 0 2009-03-08
- Season 1 2010-04-20
- Season 2 2010-10-28
- Season 3 2011-07-28
- Season 4 2012-02-17
- Season 5 2012-12-21
- Season 6 2013-09-30
- Season 7 2014-01-24
- Season 8 2014-06-13
- Season 9 2014-10-31
- Season 10 2015-07-24
- Season 11 2016-05-06
- Season 12 2017-04-28
- Season 13 2018-04-27
- Season 14 2019-05-31
- Season 15 2020-01-25
- Season 16 2020-11-13
- Season 17 2021-08-06
- Season 18 2022-01-07
- Season 19 2023-01-06
- Season 20 2024-01-05
- Season 21 2025-02-07
Season 21 Episode
- Season 3 Aliens and the Old West
- Season 3 Aliens and Monsters
- Season 3 Aliens and Sacred Places
- Season 3 Aliens and Temples of Gold
- Season 3 Aliens and Mysterious Rituals
- Season 3 Aliens and Ancient Engineers
- Season 3 Aliens, Plagues and Epidemics
- Season 3 Aliens and Lost Worlds
- Season 3 Aliens and Deadly Weapons
- Season 3 Aliens and Evil Places
- Season 3 Aliens and the Founding Fathers
- Season 3 Aliens and Deadly Cults
- Season 3 Aliens and the Secret Code
- Season 3 Aliens and the Undead
- Season 3 Aliens, Gods and Heroes
- Season 3 Aliens and the Creation of Man
Ancient Aliens - Season 3 Episode 8 Aliens and Lost Worlds
7.00 42 minutes Mysterious legends and crumbling ruins are all that is left of our planet's lost worlds. But could there be proof of ancient alien visitors hidden among the artifacts of civilizations that have long vanished? Strange carvings suggest the Mayan city of Copan was ruled by the descendants of otherworldly beings. And some believe the ancient Nazca people altered their bodies--and their lands--to signal the star gods to return. Are the astounding accomplishments of lost civilizations merely the products of ancient folklore--or could they have been something... out of this world?
