Founded 2,600 years ago. The urban structure of the walled city called Dalt Vila. Is created from the core that is the Castle, situated at the top. It takes place irregularly without prior plan, as was common in the Mediterranean cities. Always adapting to uneven terrain. Dalt Vila is surrounded by a powerful and beautiful Renaissance city walls, built in the sixteenth century by an Italian engineer named Juan Bautista Calvi. The walls consist of 7 artillery defenses. Inside observe the remains of medieval walls and towers grouped in 4 precincts easy to observe.