St. Elizabeth's Church dates back to the 14th century, when construction was commissioned by the city. The main tower was originally 130 meters tall. From 1525 until 1946, St. Elizabeth's was the chief Lutheran Church of Breslau/Wroclaw and Silesia. In 1946 it was expropriated and given to the Military Chaplaincy of the Polish Roman Catholic Church. The church was damaged by heavy hail in 1529, and gutted by fire in 1976. The church's renowned organ was destroyed. The reconstructed main tower is now 91,5 meters tall. An observation deck near the top is open to the public. Since 1999 there is a memorial on the church property to Pastor Dietrich Bonhoeffer, a native of the city (then Breslau, Germany) and martyr to the anti-Nazi Cause.
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.