Friedrichshafen, Baden-Württemberg, Germany
Amsterdam, Noord-Holland, Netherlands
Wuppertal, North Rhine-Westphalia, Germany
Berlin, Berlin, Germany
Biella, Province of Biella, Italy
Muehlheim am Main, Hessen, Germany
Oslo, Oslo, Norway
Bad Vilbel, Hessen, Germany
Chennai, Tamil Nadu, India
Hannover, Niedersachsen, Germany