Amsterdam, Noord-Holland, Netherlands
Hamburg, Hamburg, Germany
Kassel, Hessen, Germany
Witten, North Rhine-Westphalia, Germany
Vienna, Vienna, Austria
Bristol, Avon, United Kingdom of Great Britain and Northern Ireland
Kiel, Schleswig-Holstein, Germany
Riyadh Province, Saudi Arabia
N'Djamena, N'Djamena, Chad
Leuven, Flemish-Brabant, Belgium