El Castillo, Chichen Itza Temple

Address: Zona Arqueológica de Chichén Itzá, Tinum, Yucatán, Mexico (El Castillo pyramid)

El Castillo (the Temple of Kukulcán) is the principal pyramid at the Chichén Itzá archaeological site in Yucatán, Mexico, and is a central example of Maya architecture. It served as a stepped pyramid-temple dedicated to the feathered serpent deity Kukulcán and is one of the most visited pre-Columbian monuments in Mexico.

The structure is a stepped pyramid with four sides and a staircase on each side; each stairway plus the top platform yields a total of 365 steps, an apparent solar calendar reference. The pyramid is best known for the seasonal light-and-shadow effect along its northwest balustrade that resembles a serpent during the equinoxes, drawing large numbers of visitors for those dates.

Architecturally the pyramid dates to the Terminal Classic and Early Postclassic periods of Maya construction at Chichén Itzá and sits at the heart of the larger ceremonial city, which contains plazas, ballcourts, and other monumental structures.

The pyramid stands in the Chichén Itzá archaeological zone in northern Yucatán state; the site is accessible from nearby towns and is a major tourist destination in the region.

• Step count: Each of the four stairways has 91 steps; counting the platform at the top gives a total of 365 steps, corresponding to the solar year.
• Equinox phenomenon: During the spring and autumn equinoxes a play of light and shadow creates a descending serpent illusion along the pyramid’s northwest balustrade.

Chichén Itzá (El Castillo) is beside the village of Pisté on the Mérida-Cancún corridor. From Mérida drive east on Federal Highway 180 to the turnoff for Pisté/Chichén Itzá (about 120 km); from Cancún the site is farther west (roughly 180-200 km). Regular intercity buses (including ADO services) run from Mérida, Valladolid and Cancún to the Chichén Itzá/Pisté area - the archaeological zone has parking and the main plaza/pyramids are a short walk from the bus drop-off.

• Arrive at opening to beat the large mid-day tour groups and the Yucatán heat; early visits let you enjoy the site's major monuments with far fewer people.
• Hire a certified guide at the site entrance to understand the astronomical alignments and the significance of the Great Ball Court and other monuments-guided explanations add a lot that signage alone doesn't convey.
• Be aware that climbing the main pyramid is prohibited; instead, walk the plaza ring to study El Castillo's façades, the ball court and the Sacred Cenote, which are often overlooked by visitors focused only on the pyramid.