Ranked #1 of 10 in Season 2•+0.3 vs season avg
Ancient underwater cities can be found around the globe, but could these aquatic worlds be the ruins of unknown civilizations--or even proof of extraterrestrial visitations? The infamous tale of the long lost city of Atlantis may be a preserved memory of an ancient alien metropolis.
Robert Clotworthy
Narrator (voice)
Giorgio A. Tsoukalos
Self
William Henry
Self
Ariel Bar Tzadok
Self
Jonathan Young
Self
David Childress
Self
Erich von Däniken
Self
Linda Moulton Howe
Self
David Wilcock
Self
George Noory
Self
Philip Coppens
Self
Nick Pope
Self
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"Underwater Worlds" is episode 3 of Ancient Aliens season 2. It scored 7.6/10 from 271 votes, ranking #1 of 10 episodes this season (season average 7.3). It aired on November 11, 2010.
