Nouakchott, Nouakchott, Mauritania
Warsaw, Masovian Voivodeship, Poland
Groningen, Groningen, Netherlands
Leicester, England, United Kingdom
Dortmund, North Rhine-Westphalia, Germany
Heidelberg, Baden-Wuerttemberg, Germany
Bielefeld, North Rhine-Westphalia, Germany
Mexico City, Mexico City, Mexico
Freiburg im Breisgau, Baden-Württemberg, Germany
Mérida, Yucatán, Mexico