Karlsruhe, Baden-Württemberg, Germany
Aachen, North Rhine-Westphalia, Germany
Izmir, İzmir, Turkey
Izmit, Kocaeli, Turkey
Bologna, Metropolitan City of Bologna, Italy
Saskatoon, Saskatchewan, Canada
Bielefeld-Oldentrup, Nordrhein-Westfalen, Germany
Toronto, Ontario, Canada
Nürnberg, Bayern, Germany
Ankara, Turkey
