The Church is one of the oldest buildings on the Chichén Itzá site and likely named by the Spanish because of its proximity next to the nunnery. It is a rectangular room with a single doorway. The outside is completely covered in decorative carvings extending to the roof combs on the top.
Masks of the rain God Chac with large hooked noses are the dominant images. You can also see an armadillo, a snail, a turtle, and a crab, who are the four “bacabs” who, in Mayan Mythology, hold up the sky.