Hesse, Saxony-Anhalt and Thuringia are the only landlocked German states without an international border except for the city-states of Berlin and Hamburg.
Niederdorla also comprises the centre of gravity (equilibrium point) about 4.5 km (2.8 mi) to the southwest.
Other municipalities competing are Krebeck in Lower Saxony and Edermünde in Hesse, as well as the village of Landstreit near Eisenach.
The geographical centre of the German Empire from 1871 to 1919 was located at Spremberg in the Prussian Province of Brandenburg.
The German Central Uplands (Mittelgebirgsschwelle) is the Mittelgebirge area of low mountains and hills, comprising numerous individual ranges like the Rhenish Massif, the Lower Saxon Hills, the West and East Hesse Highlands, the Harz and the Thuringian-Franconian Highlands as well as the Bohemian Massif - in between the North German Plain and the Main river separating it from the South German Scarplands.