Frankfurt, Hesse, Germany
Böblingen, Baden-Württemberg, Germany
Leipzig, Sachsen, Germany
Houston, TX, USA
Düsseldorf, NRW, Germany
Medellin, Antioquia, Colombia
Hanover, Lower Saxony, Germany
Bad Dürrenberg, Sachsen-Anhalt, Germany
's Hertogenbosch, North Brabant, Netherlands
Weimar, Thuringia, Germany
Bayreuth, Bavaria, Germany
