Oslo, Oslo, Norway
Uppsala, Uppsala County, Sweden
Strasbourg, Alsace, France
Karlsruhe, Baden-Württemberg, Germany
Geneva, Geneva, Switzerland
Bourgogne-Franche-Comté, France
Utrecht, Utrecht, Netherlands
Chêne-Bougeries, Geneva, Switzerland
Trondheim, Sør-Trøndelag, Norway
Lyon, Rhone-Alpes, France
Berlin, Berlin, Germany
Lausanne, Vaud, Switzerland