The faded “ fallout shelter ” sign with three yellow triangles above the door is one of tens of thousands still visible on building façades today. They serve as a grim reminder of the hottest flashes ...

Daytime talk shows reached a pinnacle during the late 1990s —though the label is a bit of a misnomer. The stations that paid licensing fees to transit these shows could broadcast them whenever they ...

As it turns out, 911 misdials are often the result of so-called “butt dials” (inadvertent calls owing to a phone being ...

Mental Floss talks to Jennings about his new Kennections book, the wrong ‘Jeopardy!’ answer that haunts him, and what he’s ...

Each song has two blanks for you to fill in. Don’t worry—we made it multiple-choice. Anyone who grew up on animated Disney ...

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 ...

From landmark reporters to modern media moguls, these women transformed journalism as we know it. Journalism was a realm of ...

Think the word ‘human’ was created by slapping ‘hu-’ on ‘man’? Think again: ‘Man’ and ‘human’ aren’t related at all.

The most common type found in the U.S. aren’t actually fleas, but they might still take a bite out of your summer vacation ...

This is another puzzle from the anonymous 18th-century riddle-writer “Peter Puzzlewell”’s 1796 Collection of Riddles, ...

Scientists are discovering new species in all corners of the world—and in some cases, they’re stumbling upon old species in ...

Here’s the complete list of the top 20 greenest cities around the world: If you’re in the U.S., you may want to visit these ...