Basilique Saint-Nicolas is a basilica in the town of Saint-Nicolas-de-Port. It is a pilgrimage site, supposedly holding relics of Saint Nicholas brought from Italy. Nicolas became the patron saint of the Duchy of Lorraine. The current basilica was built in the 15th and 16th centuries and has fine Renaissance painted glass windows by Nicolas Droguet of Lyon, Valentin Bousch of Strasbourg, Hans von Kulmbach and Veit Hirsvogel from Nuremberg, Georges Millereau and other unknown artists, as well as 19th century replacements for lost glass works. It is a French Monument historique since 1840, and a minor basilica since 1950.
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.