Detail of the Nunnery's western building. Slightly to the center of the image, notice how the bodies of two serpents intertwine, forming a braid-like vertical line, before separating and heading towards opposite ends of the building to disgorge images of either ancestors or deities. Although gone today, above the central doorway of the building (left in this view) sat a dignitary, probably a ruler, displaying a magnificent headdress made of long quetzal feathers, part of which can still be made out.