- Robert Clotworthy (Narrator (voice))
- Giorgio A. Tsoukalos (Self)
- Ariel Bar Tzadok (Self)
- Jonathan Young (Self)
- David Childress (Self)
- Erich von Däniken (Self)
- Linda Moulton Howe (Self)
- David Wilcock (Self)
- George Noory (Self)
- Philip Coppens (Self)
- Nick Pope (Self)
- Mike Bara (Self)
- Bill Birnes (Self)
- Hugh Newman (Self)
- Robert M. Schoch (Self)
- Nick Redfern (Self)
Ancient Aliens — S18E11
Episode: Ancient Aliens On Location: Incredible Structures
Air Date: 2022-07-08
Runtime: 42 min
Overview
Ancient Aliens has traveled to many mysterious sites that seem to defy explanation. Now, Giorgio Tsoukalos takes a look back at some of the most incredible structures we’ve visited all over the world. Structures that, as far as Giorgio is concerned, provide undeniable evidence of extraterrestrial contact.