Description: The El Castillo step-pyramid, built sometime between the 9th and 12th centuries, has 91 steps on each side, adding to a total of 364 steps. An additional single step at the top brought the temple in align with the modern calendar of 365 days a year, one trip, more or less, around the giant ball of fire in the sky.

Location: Chichen Iza, Yacatan, Mexico

Keywords: Mayan Culture, Chichen Itza, El Castillo,