The Palace of the Masks, built in the Puuc style, gets its name from its facade of more than 250 identical masks of the rain god Chaac. Each mask originally had a long nose, which is how Chaac is usually depicted, but most of these have broken off. Supplication to Chaac was important for the inhabitants of Kabah because of the scarcity of water in the area. This building is also called the "Codz Poop" which means "rolled matting."
