The Naica Cave (Classic)

In the Soviet Union, x-rays didn’t just give you a look inside the human body. They also gave you a glimpse of the outside world, thanks to music that was imprinted onto this unassuming medical tool. Read more in the Atlas HERE. Plus: We always want to hear from you! If you have ...  Show more

As a young adult, Paul "Barbs" Barbato gave himself perhaps the world's biggest social studies assignment: make a profile of every single one of the 193 UN-recognized countries in the world. Ten years later, he finally finished. Check out Paul’s project – and what he’s up to next ...  Show more

There’s a lost continent waiting to be explored, and it’s right below our feet. We’ll dig into the deep human relationship to the underground—and why we understand it from an instinctive point of view, but not so much from a physical one. (Hint: We’re afraid of the dark.) In an e ...  Show more

There's a lost continent waiting to be explored, and it’s right below our feet. We’ll dig into the deep, human relationship to the underground, and why we understand it from an instinctive point of view — but not so much from a physical one. (Hint: we’re afraid of the dark.) Nati ...  Show more

[removed]In 1909, G.E. Kinkaid found a cave in the Grand Canyon containing Egyptian ...

Stephen Bishop was an enslaved man who became one of the most famous tour guides in the world. His unusual grave stands near Mammoth Cave National Park. Josie Laures joined a team to spend months in isolation in a cave, in the name of science!