If you have the time, swinging by the front desk on your way out may save you a bit of money and make someone else’s day a ...

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 ...

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 ...

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

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 ...

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 ...

The Nobel Prize-winning physicist often commented on science, the universe, and humanity. But which deep thoughts are really ...

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

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

Although the number of fires per year has not risen since the 1980s, the total area of land burned definitely has, according to the National Interagency Fire Center, from 2 to 3 million acres annually ...

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

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