Chichen Itza is the most important archaeological vestige of the Maya-Toltec civilization in Yucatán (10th-15th centuries). Its monuments, particularly in the northern group which includes the Great Ball Court, Temple of Kukulkan and Temple of the Warriors, are among the undisputed masterpieces of Mesoamerican architecture because of the beauty of their proportions, the refinement of their construction and the splendour of their sculpted decorations. These monuments exerted an influence throughout the entire Yucatán cultural zone from the 10th to the 15th centuries.