The story of Chichén Itzá
Chichén Itzá was one of the largest Maya cities, flourishing from around 600 to 1200 AD. Its pyramid, El Castillo (the Temple of Kukulcán), was built as a calendar: its four stairways and platform total 365 steps.
At the spring and autumn equinoxes, shadows form the shape of a serpent sliding down the stairs. It is a UNESCO World Heritage Site and one of the New Seven Wonders of the World.

