Düsseldorf, Nordrhein-Westfalen, Germany
Nürnberg, Bayern, Germany
Muenster, North Rhine-Westphalia, Germany
Maastricht, Limburg, Netherlands
Berlin, Berlin, Germany
Halle (Saale), Sachsen-Anhalt, Germany
Aalborg, Aalborg Municipality, Denmark
Long Beach, CA, USA
Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Linz, Oberösterreich, Austria
