Graz, Styria, Austria
Bonn, Nordrhein-Westfalen, Germany
Emilia-Romagna, Italy
Leuven, Flemish-Brabant, Belgium
Aachen, North Rhine-Westphalia, Germany
Edinburgh, Edinburgh, Scotland
Lausanne, Vaud, Switzerland
Berlin, Berlin, Germany
Aachen, Nordrhein-Westfalen, Germany