Of the other churches in the city Sta. Isabel has a polygonal apse, with each side arcaded with a Moorish trefoil arch. San Eugenio has a similar apse, with a second stage, with multifoil arcading all along it; and San Bartolomé has three of these cusped and arcaded stages in its apse. Sta. Ursula has a stone apse, circular in plan, coursed with brick, and pierced with three Moorish windows. La Concepcion has a polygonal apse of rude stonework below, and is coursed with bricks from mid-height upwards, with three Moresque windows set within square recessed panels; whilst Sta. Fé presents the unusual feature of buttresses to the apse, and has an interlacing arcade below the eaves, and long lancet windows set within Moresque cusped panels. Sta. Leocadia (commonly called Cristo de la Vega), just outside the city, and in the valley below its walls, also retains the apse of its church, erected on a site which is said to have been first built upon as early as the fourth century. This is entirely covered with arcading from the ground to the eaves, arranged in three equal orders, the lower cusped, the next having the common Moorish trefoil, and the upper being round-arched. Some of the panels of these arcades are pierced for light. The existing building is probably in no part earlier than the twelfth century; it consists of a small modern nave, a sanctuary of two bays with round transverse arches, and cusped Moresque arches in the side walls. The apse at the east end is roofed with a semi-dome. At the west end is a small modern cemetery, full of gravestones, inscribed at least as fully, fondly, and foolishly, as those we indulge in in our own cemeteries. In addition to these more important works there are, in the cathedral, a door leading into the chapter-room, and a recessed arch in one of the chapels on the south side of the nave, executed by Moorish artists probably in the fifteenth or sixteenth century. It has been absurdly enough suggested that these are parts of the ancient mosque which stood on the same site; but there is no ground whatever for the idea, the work being evidently of much later date, and it being at the time a common fashion to introduce some work of this kind into buildings which otherwise are purely Gothic.