In honor of the 700th-anniversary founding of the Royal Monastery of Santa Maria Pedralbes in Barcelona, scientists opened eight 14th-century graves and studied the 25 people found inside, including a queen.
For more than four and a half millennia, the Khufu Pyramid has stood on the Giza plateau, enduring dozens of earthquakes without serious structural damage.
Despite their occupations of Britain, the Romans and Vikings didn't leave much of a genetic mark on Britons. The Anglo-Saxons, though, were a different story.