Fragments of a map from the 1500s sparked a theory that’s been going strong for decades. It holds that extraterrestrials have been visiting Earth for thousands of years, gifting humans with advanced tech far beyond our means. Today we investigate the mysteries that make aliens seem almost plausible.
Today
HAUNTED: The Black Monk of Pontefract
In August of 1966, the Pritchard family began to experience bizarre phenomena in their West Yorkshire, England home. Unexplained pools of water, green foam oozing from taps, and violent shoves were just a few of the things the family suffered. And when they discovered the source ... Show More
38m 16s