Ancient Aliens
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.

Season 19 · Episode 20 ·
The Top Ten Alien Petroglyphs
Counting down the top ten alien petroglyphs around the world, from strange, human-like figures to flying craft and carvings of what appear to be astronauts. Could these mysterious carvings provide a record of extraterrestrial visitation?
20 episodes
No episodes match your search.
The cast behind this title
Titles you might also enjoy
About
Episode 20 of season 19 of Ancient Aliens: “The Top Ten Alien Petroglyphs”. Aired 2023-09-15. Watch it online free on ZapFlix.