lissabon, Portugal
Konstanz, Baden-Württemberg, Germany
Groningen, Groningen, Netherlands
Sofia, Sofia-city, Bulgaria
Mühlheim am Main, Hessen, Germany
Oberursel, Hesse, Germany
Stuttgart, Baden-Württemberg, Germany
Netherlands
Pordenone, Friuli-Venezia Giulia, Italy
Leeuwarden, Friesland, Netherlands
Lelystad, Flevoland, Netherlands
