Aachen, North Rhine-Westphalia, Germany
Warsaw, Mazovia, Poland
Warsaw, Masovian Voivodeship, Poland
Łódź, Łódź Voivodeship, Poland
Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Poland
Canton of Geneva, Switzerland
Basel, Basel-Stadt, Switzerland
Warszawa, Poland
Krakow, Lesser Poland, Poland
Poznań, Greater Poland Voivodeship, Poland
