Marienkirche (St. Mary's Church) is unmissable because of a stubby tower called as 'Fat Mary'. The exact year of the construction is unkown. It is assumed that the building was begun after 1260. In 1275, the building plans were changed and the building continued as a three-nave hall church without a choir. In 1280 the building was mainly completed, but it can be assumed that the construction was still continued until the first half of the 14th century.
A Renaissance pulpit is a rare piece in an otherwise bare church.
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.