Bonn, North Rhine-Westphalia, Germany
Veliko Tarnovo, Veliko Tarnovo, Bulgaria
Bonn, Nordrhein-Westfalen, Germany
Bydgoszcz, Kujawy-Pomerania, Poland
Belgrade, Central Serbia, Serbia
Budapest, Hungary
Sofia, Sofia, Bulgaria
Ljubljana, Osrednjeslovenska, Slovenia
Istanbul, Turkey
Cairo, Cairo, Egypt
