Serres, Decentralized Administration of Macedonia and Thrace, Greece
Xanthi, East Macedonia and Thrace, Greece
Kavala, Greece
Thessaloniki, Greece
Ceske Budejovice, South Bohemian Region, Czechia
Liepāja, Liepājas pilsēta, Latvia
Celje, Savinjska, Slovenia
Ecublens, Canton of Vaud, Switzerland
Kiel, Schleswig-Holstein, Germany
Thessaloniki, Central Macedonia, Greece
Esbjerg, Denmark
