Forget Venus Flytraps. Watch out for those man-eating trees. Here are some known and cryptid carnivorous plants and trees around the world.

In 2009 the bizarre Norwegian spiral event spawned a frenzied 24-hour mystery in which even the wildest of theories now seemed plausible.

Who, or what, was responsible for the mysterious death of Polish miner Zigmund Adamski in 1980? Theories include a heart attack and even UFO connections.

The Band of Holes is a series of holes carved into the rock in the Pisco Valley of Nazca Plateau, the same area as the Nazca Lines.

Alexander Sawney Bean was a clan leader who killed and cannibalized over 1,000 people. The legend inspired Wes Craven’s The Hills Have Eyes.

There were many notorious killers during the course of human history. But here are five of the most brutal serial killers in the modern age.

Is the Matrix real? In 2001 scientists made their first serious attempt to calculate the resources a universe-sized simulation would require.

The Shell Grotto of Margate is a stunning underground complex covered in 4.6 mil shells. Is it an ancient temple, a calendar, folly, or hoax?