The pyramid of Kukulkan at Chichen Itza is conventionally said to have 365 steps.
The structure, formally known as El Castillo or the Temple of Kukulcan, has four stairways with approximately 91 steps each. Adding one final step represented by the temple platform at the summit gives the familiar total of 365, matching the number of days in the Maya Haab' solar year.
The number is probably connected with the pyramid's calendrical and ritual symbolism, although the south staircase is eroded and the count is partly conventional. The pyramid is not simply a tomb or a defensive castle: it was a monumental temple designed around Maya ideas of time, rulership, astronomy, and sacred space.
El Castillo rises about 24 meters to the pyramid structure, with the summit temple adding roughly 6 meters. Around the equinoxes, sunlight creates a shifting triangular shadow along the northern balustrade, producing the celebrated “descent” of the feathered serpent deity Kukulcan. The pyramid also creates a distinctive chirping echo when visitors clap nearby.