
The home of the unexplained and all things alien. Discover UFO sightings and real-life mysteries, mind blowing docs, investigative series, and the best of sci-fi.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Billy Meier's UFO photos and prophecies bring him fame and controversy.

Large unidentified objects appear over Kremlin and Pentagon.

People search for Bigfoot in North America's dense forests.

Declassified documents from the Cold War shine light into the hidden communications between the US and the Soviet Union during the heavy tensions.

Casefiles uncovers the hidden stories behind various Small Town Monsters films.

The story of one of America's strangest places—and the bizarre activity unfolding there for decades.

Rob and Shelly Hartland believe they live under a UFO superhighway; Peter Khoury claims he experienced a close encounter of the sexual kind.