The Seven Wonders of the World:
The Pyramid at Chichén Itzá (before 800 A.D.) Yucatan Peninsula, Mexico
Chichén Itzá, the most famous Mayan temple city, served as the political and economic center of the Mayan civilization. Its various structures - the pyramid of Kukulkan, the Temple of Chac Mool, the Hall of the Thousand Pillars, and the Playing Field of the Prisoners -- can still be seen today and are demonstrative of an extraordinary comm