Ancient Aliens - Season 16 Episode 7 Impossible Artifacts
Throughout the world, ancient objects have been found that leave archaeologists at a loss. Could these impossible artifacts suggest that advanced--and perhaps even extraterrestrial--civilizations existed on Earth thousands of years before our own?
- Genre: Documentary, Mystery, Sci-Fi & Fantasy
- Studio: History
- Keyword: paranormal investigation, ancient aliens theory, ufo conspiracy, megalith, petroglyph
- Cast: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken