One of the most remarkable features of the Kukulkan pyramid is its alignment with the sun during the spring and fall equinoxes. As the sun sets, a shadow in the shape of a serpent’s body appears on the northern staircase, as seen in this photo. The shadow ‘connects’ to the huge stone serpent head at the bottom of the staircase, creating the illusion of a huge slithering snake. This is Kukulkan, a feathered serpent god and a bringer of rain and winds.

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