Kurt Gödel was one of the 20th century's most brilliant mathematicians. But he was so paranoid he ended up starving to death.

Ambrose Burnside may have been a Civil War general as well as a governor and U.S. senator, but many today know him best as the man who popularized sideburns.

Discover why China's Reed Flute Cave first captivated humans more than 1,000 years ago — then vanished from our history for more than a millennium.

Over the course of 30 years, Alex the parrot and Irene Pepperberg showed that parrots are even smarter than most people think.

Queen Teuta ruled over a powerful Illyrian kingdom in the third century B.C. When Rome demanded that she stop her country's pirates from attacking their vessels, Teuta refused, resulting in war.

Experience the awesome size of Martian volcano Olympus Mons, the tallest mountain in the solar system, three times the height of Everest.

From bizarre gravity to the devastation of World War II, here are the possible explanations behind the Crooked Forest of Krzywy Las.

Lake Abraham might be home to beautiful ice crystals, but they hold a deadly secret.

The unique peaks of Tianzi Mountain inspired the alien landscapes of "Avatar," and it's easy to see why.

The tree sprung up in 7550 B.C., making it older than recorded history.

Roy Sullivan was either the luckiest or the unluckiest man in the world, depending on how you look at it.