Situated on the northern side of the city, across the River Maine from the main old town area of the city, this delightful abbey is one of the most historic ecclesiastical buildings in the area and a fine example of Anjou architecture. The building has for many centuries served as a place of worship and religious observance. The structure has benefited from a series of overhauls in the last few hundred years, making it a fascinating place to stroll around.
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.