Iglesia de San Nicolás de Bari is located next to the Camino de Santiago, in front of the cathedral. Since the Church of San Esteban was turned into a museum, it has served as the seat of the parish of San Esteban. The church was built in 1408, replacing another Romanesque temple. It contains notable examples of fifteenth century Castilian Renaissance art by Simón de Colonia and his son Francisco. Also of great interest are the Gothic tombs, and the Renaissance arc by María Sáez de Oña and Fernando de Mena.
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.