The UnXplained With William Shatner

Examining mankind's fascination with the dead, from ancient civilizations to 20th-century empires, and the possible reasons for that focus.

According to the Greek philosopher Plato, the lost continent of Atlantis was once home to an advanced civilization before it was destroyed in a cataclysm; for centuries, archaeologists have tried to uncover evidence to prove that this legend is true.

For centuries, humanity has been compelled to build remarkable structures that are much more than simple places of shelter or work.

For centuries, legends and eyewitness accounts have told of a massive, hairy creature that roams the forest on two legs.

Stories of mysterious disappearances are compelling and confounding; cases of bizarre happenings, such as Flight MH370 and disappearances in the Bermuda Triangle.

Examining some of the most devastating plagues in human history, as well the scientific advances to combat these diseases, including the development of Edward Jenner's vaccine for smallpox in the 1790s.