The Church of Our Lady Assumed into Heaven in Śrem was built in 15th century. In the following century, appended to its nave at the west was a tower with a porch on the basement; at the north, a late-gothic chapel was added. The edifice is one-nave, with a rectangular presbytery whose size is that of the nave. Both spaces are covered by starry vaults from the late 15th/early 16th century. The side altar contains a late-renaissance painting with a scene of Our Lady Adored by St. Adalbert and St. Stanislaus, dated ca. 1620. A renaissance tombstone of the Śrem deputy-starost Jerzy Jączyński, made in the late 16th c., featuring a bas-relieved armoured figure of the buried man, has been relocated into the porch.
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.