Kassel, Hessen, Germany
Heidelberg, Baden-Württemberg, Germany
Hannover, Niedersachsen, Germany
Hamburg, Hamburg, Germany
Duesseldorf, North Rhine-Westphalia, Germany
Dresden, Germany
Örebro län, Sweden
Aix-en-Provence, Provence-Alpes-Cote d'Azur, France
Berlin, Berlin, Germany
Purbach am Neusiedlersee, Burgenland, Austria
Cologne, North Rhine-Westphalia, Germany