Haitian legends about zombies – the living dead – have inspired countless horror movies. But scientists are still trying to determine whether there is any factual basis to these tales of black magic.

Scores of aircraft, ships and small boats have gone missing in the area of the Atlantic Ocean known as the Bermuda Triangle. Theories of all kinds have been proposed to explain the mysterious happenings in these waters.

Plato once theorized that a great civilization flourished thousands of years before ancient Greece, only to vanish beneath the sea after a series of cataclysmic earthquakes. Ever since, people have been trying to pinpoint the site of this lost continent: Atlantis.

Thousands of people claim to have had near-death experiences. Do these experiences offer proof for the existence of an afterlife? Or do they tell us something about the human brain’s response to extreme stress?

For decades, parapsychologists and skeptics have waged a furious debate over the existence of extra-sensory perception. In this program, leading researchers from both camps put ESP claims to the test.