Could the lost city of Atlantis actually be an advanced alien civilization that once existed on our planet? In this video, we'll take a look at the evidence that suggests this might be the case. Source

Ancient Astronaut Theorists investigate a possible connection between Atlantis and Native American origin stories, in this clip from Season 18, "Secrets of the Star Ancestors." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: ...