Leiden, Zuid-Holland, Netherlands
Buehl, Baden-Wuerttemberg, Germany
Heidelberg, Baden-Württemberg, Germany
Leuven, Flemish-Brabant, Belgium
Asse, Flemish-Brabant, Belgium
Hartford, CT, USA
Taipei, Taiwan, Province of China
Utrecht, Utrecht, Netherlands
Alken, Flanders, Belgium
Antwerpen, Vlaanderen, Belgium
Hong Kong, Hong Kong Island, Hong Kong
Leuven, Flanders, Belgium
