Berlin

Berlin is the capital and largest city of Germany by both area and population. Its 3.8 million inhabitants make it the European Union's most populous city, according to population within city limits.

Frankfurt am Main

Frankfurt, officially Frankfurt am Main is the most populous city in the German state of Hesse. Its 763,380 inhabitants as of 31 December 2019 make it the fifth-most populous city in Germany.

Oldenburg

Oldenburg is a city in North Rhine-Westphalia, Germany. It is located west of the Rhine, halfway between Düsseldorf and the Dutch border.

München

Munich is the capital and most populous city of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the third-largest city in Germany, after Berlin and Hamburg.

Stuttgart

Stuttgart is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known locally as the "Stuttgart Cauldron".