Every season of Ancient Aliens: Special Presentation ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Ancient Aliens: Special Presentation!

Aliens and Human Evolution

Aliens and Strange Creatures

Aliens and Unexplained Engineering

Aliens and Lost Civilizations

Aliens and the United States

Mysteries of the Outer Realms

Alien Codes and Messages

Energy Lines and Hot Spots

Aliens and the Superhuman Mind

Gone without a Trace

Mission to Outer Space

The Global Connection

Strange Visitors

Unidentified Aerial Phenomena

Extraterrestrial Informants

Interstellar Fallout

Extraterrestrial Close Encounters

Aliens and the Buried Past

Mysteries Beneath the Ice

Alien Outposts

Aliens and Mysterious Texts

Aliens and World Leaders

Alien Effigies

Extraterrestrial Pyramids

Aliens and the Unseen

These special compilation episodes of "Ancient Aliens" explore the controversial theory that extraterrestrials have visited Earth for thousands of years.

The Best Seasons of Ancient Aliens: Special Presentation

The Best Seasons of Ancient Aliens: Special Presentation

Season 1

Season 2