Orléans Cathedral (Cathédrale Sainte-Croix d'Orléans) is a Gothic catholic cathedral in the city of Orléans, France. It is the seat of the Bishop of Orléans and it was built from 1278 to 1329 and 1601-1829 (after partial destruction in 1568).
The cathedral is probably most famous for its association with Joan of Arc. The French heroine attended evening Mass in this cathedral on May 2, 1429, while in the city to lift the siege. The cathedral's stained glass windows now depict the story of Joan of Arc.
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.