Vienna, Austria
Ankara, Ankara, Türkiye
Ghent, East Flanders, Belgium
Sofia, Sofia City, Bulgaria
Valletta, Malta
Łódź, Łódź Voivodeship, Poland
Fribourg, Fribourg, Switzerland
Belgrade, Serbia
Isfahan, Iran (Islamic Republic of)
Cairo, Cairo, Egypt
Porto, Portugal
Groningen, Groningen, Netherlands
