The Old Cathedral is one of two cathedrals in Salamanca. It was founded by Bishop Jerome of Périgord, in the 12th century and completed in Romanesque/Gothic style in the 14th century. It is dedicated to Santa Maria de la Sede.
The apse houses a large cycle of 53 tableaux, 12 of which by the 15th-century Italian artist Dello Delli, depicting the life of Jesus and the Virgin Mary. A fresco of the Final Judgement is over them.
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.