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You know the Great Pyramid—it's in nearly every history book. But behind those huge blocks lies a story packed with scientific secrets. What do air vents and starlight have in common? More than you think.

Texas and California might share a country, but they do not always share the same rules. In fact, some things Texans do without thinking could get them fined (or worse) if they tried the same thing in the Golden State. And yeah, a few of these are surprisingly easy to mess up.

Jamestown is known as the site of the first English settlement in the United States, but did you know it was the site of America's first unsolved murder? Until recently, when scientists cracked the case of the 1624 death of a young man named George Harrison.

The Medieval Ages were a fascinating era—it was also a time where people believed some bizarre and disgusting things, especially when it came to medicine.