Whether it is the existence of aliens, the possibility of life after death, or sightings of strange creatures, the lure of the unknown has always been irresistible. Now, using the latest scientific techniques, this series seeks to ascertain whether these strange occurrences, myths and startling phenomena are merely illusions or actually real. Each episode highlights one topic, including: Bigfoot, one of America's most-sighted-but-never-seen beings; the Eastern State Penitentiary, one of America's most haunted locations; and a possible UFO Invasion on March 13, 1997 in Nevada and Arizona. (Source: National Geographic Channel)
Episode Info
Philadelphia's Eastern State Penitentiary is said to be the one of the most haunted places in America. Since its closing in 1971, many have reported hearing eerie voices, weeping and tormented screams, while others have seen shadows dart in and out of cells. Investigators use the latest technology to search for paranormal activity. Motion sensors are rigged, night-vision and infrared cameras positioned, acoustic triangulation systems set up, and 3-D laser scanners offer a rare view inside.