Groningen, Groningen, Netherlands
San Mateo, CA, USA
Long Beach, California, United States
Berlin, Berlin, Germany
Cologne, North Rhine-Westphalia, Germany
Bochum, North Rhine-Westphalia, Germany
Prague, Prague, Czech Republic
Luebeck, Schleswig-Holstein, Germany
Maastricht, Limburg, Netherlands
Santa Barbara, CA, USA
