Muenster, North Rhine-Westphalia, Germany
Hanover, Lower Saxony, Germany
Duisburg, Nordrhein-Westfalen, Germany
Bilbo, Euskadi, Spain
Karlsruhe, Baden-Wuerttemberg, Germany
Göttingen, Lower Saxony, Germany
Colombo, Sri Lanka
Ljubljana, Osrednjeslovenska, Slovenia
Sofia, Sofia, Bulgaria