This documentary examines the speculation that aliens have visited Earth in ancient times, and built structures to which they will return at a future date.
Rod Serling
Narrator
Fred Warshofsky
Director
Sep 22, 2016
Dec 1, 2013
Jul 12, 1990
Oct 30, 2018
Sep 6, 1971
Nov 13, 1985
May 16, 2023
Sep 13, 2017
English
