śląskie, Poland
Differdange, Luxembourg District, Luxembourg
Katowice, Silesian Voivodeship, Poland
Ruda Slaska, Silesia, Poland
Mikolow, Silesian Voivodeship, Poland
Guadalajara, Jalisco, Mexico
Bamberg, Bavaria, Germany
Valencia, Valencian Community, Spain
Groningen, Groningen, Netherlands
Dnipropetrovs'k, Dnipropetrovsk Oblast, Ukraine
Wroclaw, Lower Silesia, Poland
Chorzow, Silesian Voivodeship, Poland