Ancient Aliens - Season 21 - Eps 4: The Top Ten Unexplained Technologies
Ancient Aliens is counting down ten of the most astonishing and unexplainable technologies in history. From mysterious golden orbs discovered in Mexico, to a sacred wooden box that could communicate with the heavens and an ancient tomb that is said to depict an astronaut. Might these sensational artifacts be evidence of otherworldly contact?
About Ancient Aliens

Title: Ancient Aliens
First Air Date: 2010-04-20
Last Air Date: 2025-03-07
Status: Returning Series
Rating: 6.8/10 (from 260 votes)
Language: EN
Seasons: 22
Total Episodes: 267
Network: History
Genres: Documentary, Mystery, Sci-Fi & Fantasy
Production Companies: Prometheus Entertainment
Synopsis
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
Cast

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