Walls of Cordoba
The city walls of Cordoba, which once enclosed all of the Old Town, were built by the Arabs in the 10th century Many original parts remain of the walls, although it has undergone lots of restorations and reconstructions over time.
The largest original pieces of the walls are in the Ronda del Marrubial (where you can see a 400 m long section, 6 m. high and 2.45 m thick) and along Cairúan street.
Since the Christian era the wall had thirteen different gates. Unfortunately most of them were destroyed, and today only three remain: the Almodóvar Gate (mostly Christian work built in the 14th century on the site of an old Arabic door), the Sevilla Gate (so named because it is directly connected with Sevilla) and the Bridge Gate (built in 1572 when the city decided to improve the existing door).
The Arco del Portillo (bilt in the 14th century) and Malmuerta Tower also stand today.