Freiburg, Baden-Wuerttemberg, Germany
Lisbon, Lisbon, Portugal
Kuopio, Finland
Bielefeld, North Rhine Westphalia, Germany
Hamburg, Germany
Sens, France
Sofia, Sofia City Province, Bulgaria
Rotterdam, Zuid-Holland, Netherlands
Kayseri, Kayseri, Turkey
Hong Kong, Hong Kong SAR, China
Leuven, Flanders, Belgium
