Next to the Murillo gardens, several sections of the wall have been preserved, interrupted by the openings opened at the beginning of the 20th century to connect the Santa Cruz and Alfaro squares with the gardens. In total there are about 50 meters of wall, of which the crenellations have not been preserved.
These fragments are dated from the 12th century and were built with mud and brick. Three rectangular towers have also been preserved. Of one of them, the closest to the Plaza de Refinadores, only the first solid body has been preserved. The other two, on both sides of Nicolás Antonio street, have been highly modified on their upper floors, reused for residential purposes.
The preserved towers have a rectangular floor plan and are separated by about 45 meters. Like those preserved in the Macarena, they are solid up to the height of the parapet, while they present a vaulted space on the top floor from which the roof is accessed.