The Château de Florac was originally built in the 13th century and then rebuilt in the 17th century. It originally belonged to the Barony of Anduze and passed through a number of feudal families. The castle was entirely rebuilt in 1652 after the Wars of Religion. During the French Revolution, the castle was turned into a 'salt loft' for storing salt. It was then used as a prison in the 19th century.
Since 1976, the castle has been the headquarters of the Cévennes National Park, who restored it. The ground and first floors house an exhibition on the National Park (landscape, flora, fauna and activities connected with the park). The information centre has details of hiking, guided tours, accommodation and écomusées (open-air museums) in the park.
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.