An examination of mysteries of the ancient world and their connection to the possibility that aliens visited Earth.
Release Date: January 31, 1974
April 05, 2022
November 01, 2015
December 31, 1991
December 07, 1991
January 01, 1978
January 01, 2014
February 23, 2016
September 05, 2005
March 01, 2001
July 26, 2015
September 02, 2015
December 15, 2021
May 01, 2016
January 01, 1997
September 01, 2013
November 19, 2019
January 01, 2005
November 11, 2014
January 26, 2021
April 10, 2022