Ljubljana, Osrednjeslovenska, Slovenia
Hourtin, Aquitaine, France
Engure, Tukuma novads, Latvia
Firenze, Toscana, Italy
Tukums, Latvia, Latvia
Kraków, Lesser Poland Voivodeship, Poland
Oulu, Finland
Liege, Liege, Belgium
Frederiksberg, Capital Region of Denmark, Denmark
Gent, Vlaams Gewest, Belgium
Lulea, Norrbotten, Sweden
Madrid, Comunidad de Madrid, Spain