Bonn, Nordrhein-Westfalen, Germany
Münster, North Rhine-Westphalia, Germany
Ulm, Baden-Württemberg, Germany
Zabalj, Vojvodina, Serbia
Köln, Nordrhein-Westfalen, Germany
Kaunas, Kaunas, Lithuania
Ulm, Baden-Wuerttemberg, Germany
Riga, Riga, Latvia
Germany
Dresden, Sachsen, Germany
Heidelberg, Baden Wittenberg, Germany