Barcelona, Catalonia, Spain
Simmelsdorf, Bavaria, Germany
Erlangen, Bayern, Germany
Bochum, Nordrhein-Westfalen, Germany
Rennes, Bretagne, France
Braunschweig, Braunschweig, Germany
Erlangen, Bavaria, Germany
Valencia, Valencian Community, Spain
Berlin, Berlin, Germany
Nuremberg, Bavaria, Germany