Leer, Lower Saxony, Germany
Cologne, North Rhine-Westphalia, Germany
Wesel, North Rhine-Westphalia, Germany
Braunschweig, Lower Saxony, Germany
Tulsa, OK, USA
Cologne, North-Rhine Westfalia, Germany
Clausthal-Zellerfeld, Lower Saxony, Germany
Bremen, Bremen, Germany
Bielefeld, Nordrhein-Westfalen, Germany
Berlin, Berlin, Germany
Kamp-Lintfort, Nordrhein-Westfalen, Germany
Madrid, Community of Madrid, Spain
