Silver Spring, MD, USA
Karlsruhe, Baden-Württemberg, Germany
Den Haag, Zuid-Holland, Netherlands
Strasbourg, Strasbourg, France
Erfurt, Thuringia, Germany
Arnhem, Gelderland, Netherlands
Salzburg, Salzburg, Austria
Taif, Makkah Province, Saudi Arabia
CA, USA
Linz, Upper Austria, Austria
