Ancient Aliens: Special Edition - S1E2 - Mysterious Structures

  • History, Mystery, Documentary
  • TV-PG
  • 43 min
  • Jun 20, 2014
  • HD
The theory that alien technology helped ancient humans build megalithic stone structures.
Director:

Deborah Blum

Cast:

David Childress

Michael Cremo

Giorgio Tsoukalos

Erich von Däniken

Linda Moulton Howe