Weimar, Thüringen, Germany
Marburg, Hessen, Germany
Hannover, Lower Saxony, Germany
Berlin, Berlin, Germany
Groningen, Netherlands
Hannover, lower-saxony, Germany
Kaiserslautern, Rhineland-Palatinate, Germany
Karlsruhe, Baden-Württemberg, Germany
Bremen, Bremen, Germany
Groningen, Groningen, Netherlands
Frankfurt am Main, Hesse, Germany