Istanbul, Istanbul, Turkey
İstanbul, Turkey
Perugia, Italy
Cologne, North Rhine-Westphalia, Germany
Berlin, Berlin, Germany
Düren, North Rhine-Westphalia, Germany
The Hague, South Holland, Netherlands
Rostock, Mecklenburg-Vorpommern, Germany
Frankfurt am Main, Hessen, Germany
Muenster, North Rhine-Westphalia, Germany