Lisbon, Lisbon, Portugal
Thessaloniki, Decentralized Administration of Macedonia and Thrace, Greece
Venlo, Limburg, Netherlands
Copenhagen, Lisbon, Denmark
Helsinki, Uusimaa, Finland
Bari, Apulia, Italy
Lisbon, Portugal
Berlin, Berlin, Germany
Erzurum, Erzurum, Turkey
Frankfurt am Main, Hessen, Germany