Gliwice, Silesian Voivodeship, Poland
Wrocław, Lower Silesian Voivodeship, Poland
Oszkinie, Podlaskie Voivodeship, Poland
Warsaw, Masovian Voivodeship, Poland
Rivas-Vaciamadrid, Comunidad de Madrid, Spain
Offenbach am Main, Hessen, Germany
Bournemouth, United Kingdom of Great Britain and Northern Ireland