Dortmund, North Rhine-Westphalia, Germany
Leverkusen, Nordrhein-Westfalen, Germany
Cologne, North Rhine-Westphalia, Germany
essen, North Rhine-Westphalia, Germany
Bochum, North Rhine-Westphalia, Germany
Oberengstringen, Zürich, Switzerland
Duisburg, North Rhine-Westphalia, Germany
Verden, Lower Saxony, Germany
Zürich, Zürich, Switzerland
Roermond, Limburg, Netherlands
Düsseldorf, North Rhine-Westphalia, Germany