Eindhoven, North Brabant, Netherlands
Kielce, Swietokrzyskie, Poland
București, Municipiul București, Romania
Catania, Italia, Italy
Erkrath, North Rhine-Westphalia, Germany
Gmina Stara Kamienica, Lower Silesian Voivodeship, Poland
Tallinn, Harju County, Estonia
Joensuu, Finland
Darmstadt, Hessen, Germany
Zürich, Zürich, Switzerland
