Izhevsk, Udmurt Republic, Russian Federation
Arnhem, Gelderland, Netherlands
Frechen, Nordrhein-Westfalen, Germany
Varna, Varna, Bulgaria
Trieste, Friuli-Venezia Giulia, Italy
East Kilbride, Scotland, United Kingdom of Great Britain and Northern Ireland
Barcelona, Barcelona, Spain
Luxembourg, District de Luxembourg, Luxembourg
Nagano, Nagano, Japan
Thessaloniki, Makedonia Thraki, Greece
Poligny, Bourgogne-Franche-Comté, France
Zadar, Croatia
