Looking up the Temple of Kukulkan in Chichen Itza (Mexico).
Dominating the North Platform of Chichen Itza is the Temple of Kukulkan (a Maya feathered serpent deity similar to the Aztec Quetzalcoatl), usually referred to as El Castillo (“the castle”). This step pyramid stands about 30 metres (98 ft) high and consists of a series of nine square terraces, each approximately 2.57 metres (8.4 ft) high, with a 6-metre (20 ft) high temple upon the summit. The sides of the pyramid are approximately 55.3 metres (181 ft) at the base and rise at an angle of 53°, although that varies slightly for each side. The four faces of the pyramid have protruding stairways that rise at an angle of 45°. The talud walls of each terrace slant at an angle of between 72° and 74°. At the base of the balustrades of the northeastern staircase are carved heads of a serpent.