Karagandy, Karagandy Region, Kazakhstan
Wroclaw, Lower Silesia, Poland
Athens, Attica, Greece
İstanbul, Turkey
Hamburg, Hamburg, Germany
Dolgoprudny, Moskovskaya oblast', Russian Federation
Bangor, North Down, Ireland
Munich, Bavaria, Germany
Gliwice, Silesian Voivodeship, Poland
Poznań, Greater Poland Voivodeship, Poland
Bucharest, Bucharest, Romania