Utrecht, Utrecht, Netherlands
Wenzhou, Zhejiang, China
Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Kiel, Schleswig-Holstein, Germany
București, Municipiul București, Romania
Heelsum, Gelderland, Netherlands
Orgiano, Veneto, Italy
Oftersheim, Baden-Württemberg, Germany
Pécs, Hungary
Freiburg, Baden-Württemberg, Germany
Heidenheim an der Brenz, Baden-Württemberg, Germany
Amsterdam, Noord-Holland, Netherlands
