Dominating the southern side of Tito Square is the imposing Praetorian Palace, which has served as the municipal seat for some eight centuries. Its Venetian Gothic design dates from the middle of the 15th century, with the outer staircase and balustrade added fifty years later, and the overall appearance of the façade taking shape in 1664 after significant renovations. After serving various purposes following the downfall of the Venetian Republic at the hands of Napoleon in 1797, the building underwent a decade long restoration in the 1990s and now once again serves as the municipal seat and mayor's office, as well as the Tourist Information Centre.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.