World's Most Unexplained

Experts investigate why a Los Angeles hotel has become a magnet for death and if an ominous flight number associated with multiple aviation disasters is cursed.

Experts investigate the 1961 alien abduction of Betty and Barney Hill. They then explore past life regression and the possibilities of reincarnation.

Experts debate whether spontaneous human combustion is a real medical phenomenon or an unlikely accident. They then investigate a mass sighting of UFOs in a quiet seaside town in 1977.

Experts investigate claims of paranormal activity at a Louisiana plantation and the death of rock 'n' roll superstar Elvis Presley.

Experts investigate claims of extraordinary paranormal activity at the White House and the mysterious disappearance of controversial union leader Jimmy Hoffa.

Experts investigate the otherworldly origins of crop circles and a never-ending stream of ghost sightings in a picturesque English town.

Experts investigate reports of moving Virgin Mary statues in Ireland and question whether the stigmata phenomenon is a miracle or hoax.

Experts investigate if a mysterious caller had inside knowledge of JFK's assassination and explore the mysterious world of psychics.

Experts investigate centuries-old paintings of UFOs and search for the truth behind sightings of religious apparitions around the globe.

Ufologists examine sightings of an alien-like creature in rural Massachusetts. Paranormal experts investigate if a series of house fires across the UK are linked to a cursed portrait.

Experts investigate if a deadly curse haunts the tomb of Tutankhamun and examine why certain numbers incite fear and panic in people.

Would-be treasure hunters seek out hidden hoards of gold around the globe. Scholars attempt to unlock the secrets of a mysterious Medieval manuscript.