Berlin/Brandenburg Metropolitan Region Berlin/Brandenburg Metropolitan Region The Berlin/Brandenburg Metropolitan Region (, also "Hauptstadtregion Berlin-Brandenburg") is one of eleven metropolitan regions of Germany, consisting of the entire territories of the city-state of Berlin and the surrounding state of Brandenburg. The region covers an area of with a total population exceeding 6 million. The metropolitan region should be distinguished from Berlin's immediate agglomeration, dubbed "Berliner Umland" () which comprises the city and the nearby Brandenburg municipalities. "Berliner Umland" is significantly smaller and much more densely populated than the metropolitan region, accounting for the vast majority of the region's population over a fraction of its total
Brandenburg Gate (Potsdam) and the other gates it was intended to prevent desertion and smuggling. Towards the end of the Seven Years' War, Frederick the Great had the old gate demolished and built, in its stead, this new Brandenburg Gate, as a symbol of his victory. For that reason the Brandenburg Gate resembles a Roman triumphal arch. Its prototype was the Arch of Constantine in Rome. The Roman influence of its architectural style can be seen, for example, in the double columns of Corinthian order as well as the design of the attic. A feature of the Brandenburg Gate is that it has