Saarbruecken, Saarland, Germany
Berlin, Berlin, Germany
Stuttgart, Baden-Württemberg, Germany
Kiel, Schleswig-Holstein, Germany
Merida, Yucatan, Mexico
Portici, Campania, Italy
Ciudad de México, Ciudad de México, Mexico
Medford, MA, USA
Chicago, Illinois, United States
Münster, North Rhine-Westphalia, Germany
Würzburg, Bavaria, Germany
Boston, Massachusetts, United States