Pyramid and Temple-of-the-Inscriptions, Palenque, Mexico, 7th century. [Getty Images]

Temple of Inscriptions, Palenque, Mexico. This pyramid topped with a temple is an example of classical Mayan architecture. Within the pyramid a chamber was discovered housing the sarcophagus of Pacal the Great, a king who ruled from 615-683. (Photo by Ann Ronan Pictures/Print Collector/Getty Images)

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