Ancient Aliens

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?

Genre:

Documentary, Mystery, Sci-Fi & Fantasy

Seasons:

22

Episodes:

290

Cast:

Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok

Quality:

HD

Duration:

41 min

First Air:

2010

Rating:

7.1