3-th episode of 2-th season "Ancient Aliens"

What "Ancient Aliens" 3-th episode about

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.

Episode number: 3

Episode name: "Underwater Worlds"

Episode release date: 12 november 2010 at 03:00

Status: aired

Rating: 7.6