Köln, Nordrhein-Westfalen, Germany
Bonn, Nordrhein-Westfalen, Germany
Cologne, North Rhine-Westphalia, Germany
Potsdam, Brandenburg, Germany
Bad Homburg, Hessen, Germany
Düsseldorf, North Rhine-Westphalia, Germany
Düsseldorf, Nordrhein-Westfalen, Germany
MADRID, MADRID, Spain
Cologne, Germany
Lodz, Lodzkie, Poland