Berlin, Germany
Schwetzingen, Baden-Wuerttemberg, Germany
Strasbourg, Alsace, France
Singapore, Central Region, Singapore
Hamburg, Hamburg, Germany
Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Stuttgart, Baden-Württemberg, Germany
Fort Collins, CO, USA
Christchurch, Canterbury, New Zealand
Schwetzingen, Baden-Württemberg, Germany
Philadelphia, PA, United States
Guadalajara, Jalisco, Mexico