Brussels, Brussels-Capital, Belgium
Rochester, New York, United States
Leiden, Zuid-Holland, Netherlands
Nijmegen, Gelderland, Netherlands
Strasbourg, Alsace, France
Osnabrück, Lower Saxony, Germany
Barcelona, Catalonia, Spain
Köln, Nordrhein-Westfalen, Germany
Liege, Liege, Belgium
Hamburg, Hamburg, Germany
Łódź, Łódź Voivodeship, Poland
Maastricht, Limburg, Netherlands
