Bastia Cathedral (Pro-cathédrale Sainte-Marie de Bastia) is a former Roman Catholic cathedral on the island of Corsica.
The former Bastia Cathedral, dedicated to Saint Mary, was built from 1495 onwards, with major reconstruction at the beginning of the 17th century. Behind the church stands the chapel of Sainte-Croix, known for its exuberantly decorated interior and for the figure of Christ des Miracles, venerated by the people of Bastia, and discovered floating in the waters of the Mediterranean in 1428 by two fishermen.
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.