Check out these 4 mind-blowing theories about Stonehenge, in this compilation from Ancient Aliens.

00:00 - Extraterrestrial Communication at Stonehenge
03:08 - The Purpose of Stonehenge
07:02 - The Mysterious History of Stonehenge
11:00 - Was Stonehenge Built by GIANTS?!

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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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