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It is one of the greatest mysteries of the prehistoric world: why did people on nearly every continent erect giant standing stones? According to Ancient Astronaut Theorists, the placement of these monoliths and their geological makeup could point to extraterrestrial intervention--and. quite possibly, a technology that once existed on Earth far more advanced than our own.
First Air Date : Apr 20, 2010
Last Air date : Mar 15, 2024
Episode : 249 Episode
Season : 20 Season
Runtime: 42:60 minutes
Studio: History
Country: United States of America
Cast: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken
Crew: