Three great Soviet memorials were erected in Berlin after the war, which not only serve as memorials, but also as war cemeteries. The facility in the Treptower Park is the central memorial and with 100,000 square metres the largest of its kind in Germany. The facility, also serving as cemetery for 5,000 Soviet solders, was built between 1946 and 1948 on the site of a large playing and sports field. Memorial slabs and frescos depicting the course of the war are arranged in long tiers of straight lines. The imposing figure on top of the mausoleum shows a soldier carrying a rescued German child. It is a memorial for the app. 80,000 Red Army soldiers killed during the conquest of Berlin in World War II. 40,000 cubic metres of granite were used in the construction. Aside from the war cemetery in Niederschönhausen, the facility is the largest Soviet war cemetery in Germany as well as the largest anti-fascist memorial in Western Europe.
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.