Blumenstein, Bern, Switzerland
Berlin, Berlin, Germany
Ulm, Baden-Wuerttemberg, Germany
Duisburg, Nordrhein-Westfalen, Germany
Oberhausen, North Rhine-Westphalia, Germany
Schaffhausen, Canton of Schaffhausen, Switzerland
Mülheim an der Ruhr, North Rhine-Westphalia, Germany
