Château de Couterne was originally built by Jehan de Frotté, who acquired the estate in 1542. The granite and red-brick castle has been rebuilt several stages between the 16th and 18th centuries and it has been owned by Frotté family all the time. Today it is open to the public in summer season.
References:The grounds of this lovely château are open all the year around and well worth visit - for Brits one great thing is the red squirrels! Something we have lost at home. We have written about our visit here http://www.normandythenandnow.com/squirrels-soldiers-and-silk-at-le-chateau-de-couterne/ with pics
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.