Bratislava, Bratislava Region, Slovakia
Warsaw, Mazovia, Poland
Magdeburg, Saxony-Anhalt, Germany
Barnaul, Altai Krai, Russian Federation
Graz, Styria, Austria
Vienna, Vienna, Austria
Istanbul, İstanbul, Turkey
Trentino-Alto Adige/South Tyrol, Italy
Vilnius, Vilnius, Lithuania
Helsinki, Uusimaa, Finland
Zagreb, City of Zagreb, Croatia
