San Lorenzo Castle is surrounded by ancient external walls, dating back to the 9th century. It is protected by a moat. The Gothic style castle has been restored several times during centuries.
The castle is visible from very far away, even if it is not on a hill, thanks to its six towers and wide crenellations, which were used by the defenders to protect themselves. A small avenue of 150 meters, which enters in the northern part of the park, leads the visitor to the façade of the big building. The central tower has painted on it the symbol of the castle’s owners.
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.