Tübingen, Baden-Württemberg, Germany
Thessaloniki, Central Macedonia, Greece
Annecy, Auvergne-Rhône-Alpes, France
Thessaloniki, Makedonia Thraki, Greece
new york, new york, USA
Warsaw, Mazovia, Poland
Valencia, Valencian Community, Spain
Poznan, Greater Poland, Poland
Kavala, East Macedonia and Thrace, Greece
Olten, Canton of Solothurn, Switzerland
Bratislava, Bratislava, Slovakia
