Merzig, Saarland, Germany
Goettingen, Lower Saxony, Germany
Cincinnati, OH, United States
Cincinnati, Ohio, United States
Trier, Rhineland-Palatinate, Germany
Halle (Saale), Saxony-Anhalt, Germany
Bochum, North Rhine-Westphalia, Germany
Frankfurt, Hesse, Germany
Bonn, Nordrhein-Westfalen, Germany
Berlin, Berlin, Germany
