When a politician, sports team, or anyone else faces a defining challenge, it's referred to as a “litmus test.” What's litmus ...

With 433 properties in the National Park System, there’s no shortage of destinations to choose for your next nature-focused ...

If you collected Dragon Ball Z trading cards in the early 2000s, you could have a small fortune on your hands.

In the 18th century, Swedish botanist Carl Linnaeus gave these symbols a new meaning. He used ♂ and ♀ in plant classification ...

None of us are likely to get one of those movie contraptions where pulling down a specific book opens a secret room behind the shelves. But at least we have book nooks, which places the secret room in ...

Though it’s not as popular as the middle finger, the “devil horns” hand gesture is ubiquitous at heavy metal shows, where ...

Nausea and vomiting are the bane of many a pregnant person’s first trimester. And despite the name, the symptoms aren’t just ...

The CIA's encrypted art sculpture has puzzled cryptographers for decades. The man with the answers is finally ready to clue ...

Welcome to Kennections, a weekly quiz created by ‘Jeopardy!’ host and champion Ken Jennings. Welcome to Kennections, a weekly quiz created by Jeopardy! host and champion Ken Jennings. Here’s how to ...

It features synonyms for 18 famous film titles—your job is to type the film’s real title in the blank. Here are the rules: ...

While some people may define literacy in strict terms as proficiency in reading comprehension, there’s often much more to it ...

The Eugenics Record Office thought pseudoscience could make more perfect humans. It led to unspeakable tragedy.