Hardly anything remains of its Romanesque nave and apse. Its two Mudéjar towers are its most important feature. The oldest one is called Torre de los Ajedreces, or the Chessboard tower, for its chequered decoration. It also has fish-shaped bricks. The porticoed gallery on the south wall consists of several arches over paired columns. Their capitals are decorated with different motifs. The Segovian influence is apparent. Open for cultural activities.