Building with a single nave with a narrower square apse that was later replaced by the present one. It amazes for its two high twin windows with horseshoe arches upon imposts and also for some no less surprising capitals preserved inside, bevelled, properly included in Visigothic sculpture, but also containing some heads with more relief. It was possibly a civil building turned later into a church.

It is possibly the last Visigothic monument we know. With cruciform plan with three naves, the lateral one with chambers, crossing nave and an apse, is similar to St. Pedro de la Nave, although here the crossing is next to the apse. Only the chevet has survived with an excellent decoration in the main arch and three friezes along its outside.

Monasterio románico del siglo XII, que fue demolida en el XVIII para sustituirlo por otro neoclásico. Se ha conservado el magnífico claustro de doble planta, con una decoración escultórica excepcional y algunos otros restos románicos integrados en la nueva estructura.

This tower is located in Covarrubias. It is the only military stronghold preserved from that period. It is so called after Doña Urraca, grand daughter of Fernán González, who was sovereign abbess of the Monastery of St. Cosme and St. Damián in Covarrubias. Formed by three bodies, the first one possibly of Roman origin, with walls up to 3 m wide. The second one has a horseshoe door at many metres from the floor, and the last one, rebuilt in a later period, with windows and buttresses.