Residents of a quiet village in England were perplexed to receive letters from an anonymous sender.
Medical experts have been left scratching their heads over the mystery of how the late nun's body has remained intact.
It was believed that the Beluga whale had been part of a secretive Russian marine mammal training program.
An Australian researcher believes he knows what happened to the plane and why nobody has found the wreckage.
The body of the unidentified hiker was found in a cave along the Appalachian Trail back in 1977.
Astronomers have spotted something unexpected zooming through our galaxy and it is really shifting.
The animals were found unexpectedly by a woman who happened to be driving past their paddock on Tuesday.
Archaeologists have successfully deciphered doom prophecies written on ancient Babylonian cuneiform tablets.
After several decades, forensic science has finally determined the identity of an unknown solider who died back in 1918.
For years, archaeologists have pondered over the mystery of Atlantis and whether it ever actually existed at all.
Local residents say that the footprints lead to the deceased man's house and won't wash away with water.
A 65-year-old man has been found dead on a beach in Spain after conducting some sort of strange ritual.
The woman was only found when a local farmer happened to be working nearby and heard her screaming.
Archaeologists have found a mysterious skeleton within a 2,200-year-old tomb that was discovered in Italy last year.
The mystery of the alleged mummified 'aliens' unearthed in Peru seems to have taken yet another unexpected turn.
Police are investigating the circumstances surrounding the deaths of six people who drank from cups laced with poison.
A couple who had been attempting to sail across the Atlantic have been found dead in a washed up lifeboat.
The mysterious vandal had been leaving paintings of ghosts all around the Tarpon Springs area.
The men had consumed the unidentified contents of some bottles found floating off the coast of Sri Lanka.
A sword that had been lodged in solid rock for over 1,300 years has gone missing under mysterious circumstances.