Tuebingen, Baden-Wuerttemberg, Germany
Calw, Baden-Wuerttemberg, Germany
Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Cologne, North Rhine-Westphalia, Germany
Mannheim, Baden-Württemberg, Germany
Erfurt, Thuringia, Germany
Düsseldorf, North Rhine-Westphalia, Germany
Starnberg, Bavaria, Germany
Hamburg, Hamburg, Germany