Gliwice, Silesian Voivodeship, Poland
Bielsko-Biala, Silesian Voivodeship, Poland
Istanbul, Istanbul, Turkey
Madrid, Community of Madrid, Spain
Chorzow, Silesian Voivodeship, Poland
Reykjavik, Iceland
Izmir, Izmir, Turkey
Galați, Galați, Romania
Gliwice, Silesia, Poland
Omsk Oblast, Russian Federation
Denizli, Denizli, Turkey