Chichén Itzá in Mexico is one of the new Seven Wonders of the World

The stepped pyramids, temples, columned arcades, and other stone structures of Chichén Itzá were sacred to the Maya and a sophisticated urban center of their empire from A.D. 750 to 1200.

Viewed as a whole, the incredible complex reveals much about the Maya and Toltec vision of the universe—which was intimately tied to what was visible in the dark night skies of the Yucatán Peninsula.

The most recognizable structure here is the Temple of Kukulkan, also known as El Castillo. This glorious step pyramid demonstrates the accuracy and importance of Maya astronomy—and the heavy influence . . .