Geography and urban development of Dresden past 60 years has made Dresden the fourth largest urban area in Germany after Berlin, Hamburg, and Cologne. The most important river in Dresden is the Elbe river, the only navigable body of water to flow through the city. There are also a number of tributaries such as the river Weißeritz. The nearest German cities are Chemnitz (80 km to the southwest), Leipzig (100 km to the northwest) and Berlin (200 km to the north). The Czech capital Prague is about 150 km to the south; the Polish city of Wrocław is about 200 km to the east. There are
Constitution of Hamburg is represented by the senate (the cabinet), which is headed by the First Mayor of Hamburg ("Erster Bürgermeister der Freien und Hansestadt Hamburg"), a position equivalent to a prime minister or minister-president. The constitution has been amended 34 times since 1952. Constitution of Hamburg The Constitution of the Free and Hanseatic city of Hamburg (German: "Verfassung der Freien und Hansestadt Hamburg") is the basic governing document of the German city-state of Hamburg. It was approved on 6 June 1952. It is the fourth constitution that the state has had, consists of 76 articles, and has been amended 34 times. Erich