Altsasu/Alsasua, Navarre (Community of), Spain
Gloucester, Gloucestershire, United Kingdom
Hamburg, Hamburg, Germany
Ulm, Baden-Wuerttemberg, Germany
Barcelona, Catalonia, Spain
Cali, Valle del Cauca, Colombia
Munich, Bavaria, Germany
Lübeck, Schleswig-Holstein, Germany
Tuebingen, Baden-Wuerttemberg, Germany
Neustadt an der Weinstrasse, Rhineland-Palatinate, Germany
Osnabrück, Niedersachsen, Germany
