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 Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.