The Nunnery is a great example of typical Puuc architectural styles, including Chac masks, serpents, pillars, and lattice work. The building located to the north seems to be the most important since it is on a higher platform compared to the others, although those located to the east and the west are no less important. There is a large staircase with a carved stone in the center, modern metal stairs are also on the northeast corner. There are two temples on both sides of the bottom end of this staircase. The smallest on the right, has no ornamentation and only has two columns. The one on the left is supported in four columns and may have been dedicated to the planet Venus. In this building, there are a total of 26 rooms that are arranged horizontally. The ornamentation is made of human figures, monkeys, birds and stylized Mayan huts with roofs of feathers, two-headed snakes, and of course, masks of Chac and Tlaloc.