Duisburg, North Rhine-Westphalia, Germany
Zurich, Zurich, Switzerland
Zürich, Zürich, Switzerland
Krefeld, North Rhine-Westphalia, Germany
Hamburg, Hamburg, Germany
Freiburg, Baden-Württemberg, Germany
Saint Petersburg, Saint Petersburg, Russian Federation
Moscow, Russian Federation
Sherbrooke, Quebec, Canada
Ferndale, MI, USA
Stuttgart, Baden-Württemberg, Germany
Geneva, Geneva, Switzerland
