Tallinn, Harju maakond, Estonia
Odivelas, Lisbon, Portugal
Skopje, Greater Skopje, Macedonia (the former Yugoslav Republic of)
La Plata, Buenos Aires Province, Argentina
Groningen, Netherlands
Lužianky, Nitra Region, Slovakia
Frankfurt am Main, Hessen, Germany
La Louvière, Walloon Region, Belgium
Lakšárska Nová Ves, Trnava Region, Slovakia
Zaragoza, Aragón, Spain
Brussels, Brussels, Belgium
Bratislava, Slovakia