A mysterious 2,700-year-old Etruscan Pyramid of Bomarzo, or the Stone of the Preacher, was possibly used in ritual pagan ceremonies involving sacrifices.
The history of Christmas carols stems from a time when people sang songs during Winter Solstice celebrations and evolved into the festive caroling of today.
H.H. Holmes planned all of his murders. He even equipped his "Castle" with gas chambers, trap doors, a crematorium, and hidden shafts to torture and kill.
The Salman Rushdie fatwa - a death threat - was issued for "blasphemy" by the Ayatollah Khomeini in 1989 in response to Rushdie's book "The Satanic Verses."
The 1959 Dyatlov Pass Incident involves nine students who died in the Ural mountains of the USSR under very mysterious circumstances during a skiing tour.
It took camera surveillance and GPS tracking devices by the Norris team to figure out what was moving the sailing stones in Death Valley.
Stories about otherworldly or frightening experiences have recently surfaced about people getting too close to or climbing isolated stairs in the woods.