Thessaloniki, Greece, Greece
Porto, Porto District, Portugal
Freiburg, Baden-Württemberg, Germany
Brussel, Brussels Hoofdstedelijk Gewest, Belgium
Thessaloniki, Makedonia Thraki, Greece
Skopje, Skopje Region, Macedonia-FYROM
Warsaw, Mazovia, Poland
Warsaw, Masovian Voivodeship, Poland
Italy
Thessaloniki, Central Macedonia, Greece
Bochum, North Rhine-Westphalia, Germany
Bologna, Emilia-Romagna, Italy
