Sometimes the military systems put in place to avert nuclear annihilation worked a little too well.

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It sounds like a myth, but hot drinks really can make you cooler.
Did your favorite ride make the list?
If you want a hike that will test your limits, maybe you should visit (or relocate to) one of these states.
Mental Floss talks to Jennings about his new Kennections book, the wrong ‘Jeopardy!’ answer that haunts him, and what he’s reading now.
Get the full stone fruit galette recipe from the Institute of Culinary Education—complete with storage tips and baking secrets for flakiness.
From landmark reporters to modern media moguls, these women transformed journalism as we know it.
It’s time to play Tune Twist, where we translate the lyrics of popular songs into multiple languages and then back into English. Can you figure out what the song is, or who performed it?
One key ingredient separates a malt from a milkshake.
Here’s how to say everything from liquors like cachaça to brands like Moët.
Marvel fans can now pre-order an LED-lit, Galactus-inspired popcorn bucket big enough to set a Guinness World Record.
Think ‘human’ was created by slapping ‘hu-’ on ‘man’? Think again: ‘Man’ and ‘human’ aren’t related at all—and they’re just one example of words that seem like they must be linked, but turn out to have nothing in common once you dig into their etymology.
People really regretted spending their time and money at these attractions.
One man’s dream was a city planner’s nightmare.
Whether you’re into stalactite symphonies, prehistoric shelters, or just love your trails dark and damp, these 10 U.S. underground wonders have you covered.
They haven’t been mandated by the EPA since 2012, but California has kept them around.
Napping offers many benefits, but getting the most out of a midday snooze isn’t always easy. Fortunately, these expert-backed tips can help, and keep you feeling refreshed after the fact, too.
All five answers to the questions below have something in common. Can you figure it out?
John Humphrey Noyes wanted to build a heaven on Earth—but for Charles Guiteau, life at the Oneida Community was a living hell.