The unseasonably warmer weather appears to be having an adverse effect on the Siberian permafrost.
A mystery philanthropist known only as 'Benny' has been hiding $100 bills around town for people to find.
Officials have finally admitted defeat after failing to solve the case of a 1971 airline hijacking.
A peculiar affliction once left hundreds of people dancing uncontrollably in the streets of Europe.
Mysterious individuals dressed in black have been reported standing at the side of roadways in Iowa.
The origins of a granite marker on an island in Massachusetts have remained a mystery for years.
70-year-old Peter Lohr claims to have located five nuclear bombs inside a network of underground caverns.
History professor Paul Sonnino believes he has finally uncovered the story of the man behind the mask.
Workmen in Saudi Arabia were left scratching their heads when sand started erupting from the ground.
Scientists are hoping to extract DNA from skin and hair samples found on some of Da Vinci's paintings.
Were the Pink and White terraces of Lake Rotomahana really destroyed when Mount Tarawera erupted ?
Residents of Fukuoka were perplexed when a thick layer of foam started to engulf the city's streets.
The deaths of 18 athletes who took part in the London 2012 Olympics have sparked rumors of a curse.
A peculiar structure in the Egyptian desert near Cairo has been generating a lot of speculation online.
A missing patent for the world's first powered flying machine has been found in an old archive in Kansas.
A 17th-century alchemy manuscript written by Sir Isaac Newton has been found in a private collection.
Researchers have determined that the late playwright's skull was 'probably stolen' over 200 years ago.
The USS Conestoga, which vanished without a trace in 1921, has finally been found near San Francisco.
Strange circular, grass-ringed patches have been discovered over hundreds of square kilometers.
A new discovery off the coast of Norway could help to solve the long-running Bermuda Triangle mystery.