Gross Zicker brick church was erected with a flat-roofed nave and a rib-vaulted choir around 1360. In 1835 the half-timbered roof tower was rebuilt. Among the preserved medieval furnishings are the altar cross, a bronze bell and the tabernacle, which was carved from a single oak trunk. The Baroque pulpit is also worth mentioning (built in 1653).
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.