Aachen, North Rhine-Westphalia, Germany
Witzenhausen, Hesse, Germany
Riga, Latvia
Nottingham, England, United Kingdom of Great Britain and Northern Ireland
Bern, Bern, Switzerland
Vaughan, Ontario, Canada
Dresden, Saxony, Germany
Berlin, Berlin, Germany
Münster, Nordrhein-Westfalen, Germany
Herdecke, North Rhine-Westphalia, Germany
Darmstadt, Hessen, Germany
Chemnitz, Saxony, Germany
