Koblenz, Rhineland-Palatinate, Germany
Weimar, Thüringen, Germany
Katowice, Silesian Voivodeship, Poland
Mainz, Rheinland-Pfalz, Germany
Portland, OR, USA
Berlin, Berlin, Germany
Victoria, British Columbia, Canada
Leiden, Zuid-Holland, Netherlands
London, England, United Kingdom
Bonn, North Rhine-Westphalia, Germany
