Chichén Itzá is an ancient Mayan city located in the Yucatán Peninsula of Mexico. It was a major cultural and economic center from the 7th to the 10th centuries. The site is famous for its impressive architecture, including the iconic pyramid known as El Castillo, which served as a temple to the god Kukulkan. Today, Chichén Itzá is a UNESCO World Heritage Site and one of the New Seven Wonders of the World. Visitors come to explore its well-preserved ruins, which include the Great Ball Court, the Temple of the Warriors, and the Observatory, showcasing the advanced knowledge of the Mayan civilization.