In the 19th century, traveling artists created exquisite sundials; crafting 100 was extraordinary. In the 20th century, companies industrialized sundial-making, producing perhaps 5,000 in total. But 20,000 sundials? Curiosity Box now holds history's record—turning a timeless art into a modern phenomenon.

We calculated how far a liter of water would stretch if you laid every one of the molecules in it end-to-end. The results were surprising! But we didn’t stop there. How much liquid is in your eyeballs? In 4,000 four-leaf clovers?

Inside the Denary Dice set, our legendary first-of-it’s kind set of math rocks