Winterthur, Zürich, Switzerland
Ilmenau, Thuringia, Germany
Stuttgart, Baden-Württemberg, Germany
Luzern, Luzern, Switzerland
Fulda, Hessen, Germany
Beijing, China
Izmir, İzmir, Turkey
Stockholm, Stockholm, Sweden
Taipei, Taiwan = Republic of China (ROC), Taiwan, Province of China
Aachen, North Rhine-Westphalia, Germany
