Dortmund, North Rhine-Westphalia, Germany
Freiburg im Breisgau, Baden-Württemberg, Germany
Essen, Nordrhein-Westfalen, Germany
Beuron, Baden-Württemberg, Germany
Freiburg, Baden-Württemberg, Germany
Köln, Nordrhein-Westfalen, Germany
Witten, North Rhine-Westphalia, Germany
Bielefeld, North Rhine-Westphalia, Germany