Sorunda church is an unusually large, medieval church. Its history goes back to the 12th century with major additions made in the 15th and 16th centuries (the current exterior dates mainly from 1540). The church contains burial chapels for local aristocratic families and several interior details dating from the Middle Ages, notably an unusually fine wooden sculpture by Herman Rode. The altar screen dates from the late 1400s and is probably made by Bertil Målare's workshop.
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.