Beauport Abbey was founded by Alain I of Avaugour in 1202. The heyday of abbey was in the 13-14th centuries and the late 17th century. It was closed down and destroyed during the Great Revolution in 1790. The abbey was sold as private property in 1797 and later to the community of Kérity. The restoration began in 1992 and today it is one of the most important attractions in Brittany.
The different buildings constructed in the 13th century were arranged around the cloister and followed the typical layout adopted by most abbeys of this period. This layout remains visible today. The guest hall, chapter house and cellars are prime examples of Gothic architecture.
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.