'El Castillo, Chichén Itzá, Mexico' - Ancient Engineering.
Built in the peak of the maya civilisation between 850 A.D. and 1200 A.D. This glorious step pyramid demonstrates the accuracy and importance of Maya astronomy.
The temple has 365 steps—one for each day of the year. Each of the temple’s four sides has 91 steps, and the top platform makes the 365th.
Devising a 365-day calendar was just one feat of Maya science. Incredibly, twice a year on the spring and autumn equinoxes, a shadow falls on the pyramid in the shape of a serpent. As the sun sets, this shadowy snake descends the steps to eventually join a stone serpent head at the base of the great staircase up the pyramid’s side.
