Dio-Olympos, Central Macedonia, Greece
Aachen, Nordrhein-Westfalen, Germany
Verona, Veneto, Italy
Athens, Attica, Greece
Thessaloniki, Central Macedonia, Greece
Mantova, Lombardia, Italy
Litochoro, Central Macedonia, Greece
Pesaro, Pesaro and Urbino, Italy
Thessaloniki, Decentralized Administration of Macedonia and Thrace, Greece
Kalamata, Greece
Mitilini, Egeo, Greece
