Thessaloniki, Decentralized Administration of Macedonia and Thrace, Greece
Doha, Doha, Qatar
Žilina, Žilina Region, Slovakia
Moscow, Moscow, Russian Federation
Martin, Martin, Slovakia
Presov, Presov, Slovakia
Kaunas, Kauno apskritis, Lithuania
Prague, Prague, Czech Republic
Modena, Emilia-Romagna, Italy
Como, Province of Como, Italy
Porto, Porto, Portugal
Tartu, Tartu, Estonia
