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S22E04: Extraterrestrial EngineeringHost Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of extraterrestrial contact in the distant past?
Genres:
Air Date:
Feb 05, 2026
Runtime:
42 minutes
Production:
Casts:
Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken, Linda Moulton Howe, David Wilcock, George Noory, Philip Coppens, Nick Pope, Mike Bara, Bill Birnes, Hugh Newman, Robert M. Schoch, Nick Redfern
