Aachen, Nordrhein-Westfalen, Germany
Mexico City, Mexico City, Mexico
Cologne, North Rhine-Westphalia, Germany
Aachen, North Rhine-Westphalia, Germany
Bogota, Bogota, Colombia
Bergheim, North Rhine-Westphalia, Germany
North Rhine-Westphalia, Germany
Sittard, Limburg, Netherlands
Bergheim, Nordrhein-Westfalen, Germany
Köln, Nordrhein-Westfalen, Germany
Lüneburg, Germany
Darmstadt, Hesse, Germany