Bucharest, Bucharest, Romania
Albano Laziale, Lazio, Italy
Erlangen, Bavaria, Germany
Berlin, Berlin, Germany
Barcelona, Spain
Düsseldorf, North Rhine-Westphalia, Germany
Aalborg, North Denmark Region, Denmark
Amsterdam, North Holland, Netherlands
Groningen, Groningen, Netherlands
Saint Petersburg, Saint Petersburg, Russian Federation
Amsterdam, Noord-Holland, Netherlands
Emmen, Drenthe, Netherlands
