Castellana Grotte, Puglia, Italy
Ferrara, Emilia-Romagna, Italy
Matera, Basilicata, Italy
Esslingen am Neckar, Baden-Wuerttemberg, Germany
Stuttgart, Baden-Württemberg, Germany
Olesnica, Lower Silesia, Poland
Grünheide, Brandenburg, Germany
Philadelphia, PA, USA
Annecy, Rhone-Alpes, France
München, Bayern, Germany
Winterthur, Zurich, Switzerland
