For decades, archaeologists have been perplexed by thousands of mysterious dimples dotting the landscape in southern Peru.

In the 1990s, Art Bell’s Coast to Coast AM was the radio’s answer to Unsolved Mysteries. The late-night talk show discussed aliens from outer space, Sasquatches, haunted houses, and cattle mutilations ...

Large holes have mysteriously appeared on a beach, leaving walkers and geologists puzzling over what made them. Elizabeth Thomas, who lives in Durham, regularly goes for walks on Northumberland's Holy ...

Here a few of the strange historical markers you'll find in the Texas Hill Country. Dead Man's Hole in Marble Falls, Texas. The historical marker is believed to have been a dumping ground during the ...

RIVERSIDE, Calif. -- A Riverside family is dealing with a mysterious, massive hole in their backyard. No one is allowed in the pool, on the swings or the trampoline, and the dogs are only allowed in ...

Rows of uniform holes, either horizontal (most commonly) or vertical, might look like an insect attack, but they are more likely caused by a bird with an unusual name – the yellow-bellied sapsucker ...

The discovery of strange, ultra-red objects—especially the extreme case known as The Cliff—has pushed astronomers to propose ...

Black holes are dark, menacing objects with gravity so intense that not even light can escape, so you don’t want to mess with them. A recent discovery of one of the strangest supernovas ever observed ...