Český Krumlov is a small town located in the South Bohemia region of the Czech Republic. The historic center of Český Krumlov, including its castle, integrates the Unesco World Heritage List since 1992. The town’s population in 2018 was 13 028 inhabitants and its area about 22 km².
Bonn is a German city in the federal state of North Rhine-Westphalia. It was the capital of the Federal Republic of Germany until the reunification of the country in 1990, and seat of government until 1999. It is part of the Rhine-Ruhr metropolitan macro-region.
Görlitz is the easternmost city in Germany. The city is located in Upper Lusatia and is the sixth largest city in the state of Saxony. When the borders were redefined after the Second World War, the eastern side of the city, much smaller in size, became part of Poland, receiving the name of Zgorzelec.
Frankfurt is the most populous city in the German state of Hesse. With 763,380 inhabitants it is the fifth most populous city in Germany. Frankfurt’s central business district is located about 90 km (56 miles) northwest of the geographic center of the EU in Gadheim, Lower Franconia.
