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) two completely different sides, designed by two architects. Carl von Gontard designed the city side, his pupil, Georg Christian Unger, the field or countryside-facing side. Gontard made the city side as a rendered facade with Corinthian-style lesenes and trophies, Unger designed the field site in the style of the Arch of Constantine with Corinthian double-columns and ornamentation like the golden trumpets. The two side entrances for pedestrians were not added until 1843, under Frederick William IV, in order to cope with the increase in pedestrian traffic. At that time people had to pass the Brandenburg Gate if they wanted to