Groningen, Groningen, Netherlands
Berlin, Berlin, Germany
Borlänge, Sweden
Washington, DC, USA
Gießen, Hessen, Germany
Aarhus, Central Denmark Region, Denmark
Gaithersburg, MD, United States
Werl, North Rhine-Westphalia, Germany
Bayreuth, Bavaria, Germany
Munich, Bavaria, Germany
Sonneberg, Thuringia, Germany
