An attack by the Saracens in 891, who remained until the end of the 10th century, devastated the country around current Cannes. The insecurity of the Lérins islands forced the local monks to settle on the mainland, at the Suquet (today the old town). Construction of a castle in 1035 fortified the city by then known as Cannes.
The castle was damaged in end of the 16th century and partially demolished in the 18th century. In 1919, the municipality of Cannes acquired all the buildings in order to house its museum. Today the Musée de la Castre hosts 19th-century Riviera landscape art, musical instruments & ethnographical items in a medieval tower.
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.