Ruda Slaska, Silesia, Poland
Bardejov, Prešov, Slovakia
Zabrze, Silesia, Poland
Utrecht, Utrecht, Netherlands
Fáskrúðsfjörður, Iceland
Poznan, Greater Poland, Poland
Ivano-Frankivsk, Ivano-Frankivs'ka oblast, Ukraine
Katowice, Silesian Voivodeship, Poland
