Dr. MacDougall believed the human soul had mass and tried to measure the weight of the soul. His tests are known as the 21 Gram Soul Theory.

The USS Cyclops, with its 306 officers, men, and passengers, mysteriously disappeared in March 1918 near St. Kitts Island in the Bermuda Triangle.

Known also as “America’s Unknown Child”, the Boy in the Box murder has gone unsolved since the discovery of his body on 25 February 1957.

The Minoans were a powerful civilization on Crete, but they seem to have disappeared from history. New evidence may tell us what happened.

Sleeping Prophet, Edgar Cayce, was America’s most famous psychic. He gave insight into Atlantis, Egypt, reincarnation and doomsday events.

The Roanoke Colony was the first English settlement in America. How the lost colony of Roanoke simply vanished has baffled us for centuries.

Why do people in Lijien believe they are descendants of a lost Roman legion in China that were taken as prisoners who founded a city there?

Easter Island history is riddled with exploitation and challenges that caused the collapse of the island ecosystem and Rapa Nui culture.