Aachen, North Rhine-Westphalia, Germany
Bialystok, Podlaskie, Poland
Aix-en-Provence, Provence-Alpes-Côte d'Azur, France
Volos, Greece
Oldenburg, Lower Saxony, Germany
Sergy, Auvergne-Rhône-Alpes, France
Milwaukee, WI, USA
Budapest, Budapest, Hungary
Madison, WI, USA
