Join us at AlienCon to see your favorite experts from Ancient Aliens! Ancient astronaut theorists believe pyramids could've even been built on Antarctica and been mistaken for naturally-occurring structures in this clip from Season 11, Episode 1, "Pyramids of Antarctica". #AncientAliens ...

Join us at AlienCon to see your favorite experts from Ancient Aliens! Ancient astrounaut theorists ponder whether the texts found in an ancient Egyptian temple describe a past natural event or a purposeful attack from an other-worldly civilization in this clip from Season 11, Episode 1, ...

Join us at AlienCon to see your favorite experts from Ancient Aliens! Ancient astronaut theorists believe the Nazis may have established an intricate underground headquarters in the Arctic in this clip from Season 11, Episode 1, "Pyramids of Antarctica". #AncientAliens Subscribe for more from ...

Join us at AlienCon to see your favorite experts from Ancient Aliens! Some scientists believe that terraforming the surface of Mars to make it more Earthlike is the best plan for growing food in this clip from Season 11, Episode 2, "Destination Mars". #AncientAliens Subscribe for more from ...