Carcasssone in southern France is located on a strategic site overlooking the main road between the city of Toulouse and the Mediterranean Sea. The old city of Carcasssone was built by the Romans and was occupied by the Visigoths in the fifth century. Carcassone was ruled by the Trencaval family, early in the thirteenth century, the city was conquered by northern French forces.
The famous walls of the Old City contain survivals from all these periods. The walled town of Carcassone is roughly rectangular in shape, up to 525 meters long and 250 m wide. It is surrounded by its medieval double enclosure wall; the inner curtain is 1245 m in length, with 29 towers, while the outer has 18 towers and is 1320 m long.