Stockholm, Stockholm County, Sweden
Xanthi, East Macedonia and Thrace, Greece
Wroclaw, Lower Silesia, Poland
Thessaloniki, Makedonia Thraki, Greece
Offenbach, Hessen, Germany
London, England, United Kingdom
Attica Region, Greece
Bilbao, Basque Country, Spain
Freiburg im Breisgau, Baden-Württemberg, Germany
Galway, Galway, Ireland (Republic of)
Thessaloníki, Greece
