Notre-Dame de Saint-Veran Cathedral in Cavaillon was built in the 11th century, raised in the 12th century and underwent extensions in the 16th and 17th century with the addition of the side chapels. The cathedral interior boasts gilt wood panelling from the 17th century and19th century mural paintings, as well as paintings by Mignard and de Parrocel.
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.