Bialystok, Podlaskie Voivodeship, Poland
Dortmund, North Rhine-Westphalia, Germany
Warsaw, Mazovia, Poland
Torun, Poland
Lublin, Lublin Voivodeship, Poland
Elk, Warmia-Masuria, Poland
Gdansk, Pomerania, Poland
Ilawa, Warmian-Masurian Voivodeship, Poland
Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Poland
Geneva, Geneva, Switzerland
Kuźnica, Pomeranian Voivodeship, Poland
Vilanova i la Geltrú, Catalunya, Spain