Angers, Pays de la Loire, France
Stockholm, Stockholm County, Sweden
Zlaté Moravce, Slovakia
Oulu, Finland
Paris, Ile-de-France, France
Nantes, Pays de la Loire, France
Oulu, Northern Ostrobothnia, Finland
Bruxelles, Bruxelles, Belgium
Pozuelo de Alarcón, Community of Madrid, Spain
Istanbul, Istanbul, Turkey