Köln, Nordrhein-Westfalen, Germany
Pforzheim, Baden-Württemberg, Germany
Hamburg, Hamburg, Germany
Berlin, Berlin, Germany
Campania, Italy
Berlin, Germany
Mannheim, Baden-Wuerttemberg, Germany
Frankfurt am Main, Hessen, Germany
Madrid, Community of Madrid, Spain
Bonn, North Rhine-Westphalia, Germany
València, Comunidad Valenciana, Spain