Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Somerville, MA, United States
Isafjordhur, Westfjords, Iceland
Bonn, North Rhine-Westphalia, Germany
Amsterdam, Noord-Holland, Netherlands
Freiburg, Baden-Württemberg, Germany
Reykjavik, Greater Reykjavik, Iceland
Niemegk, Brandenburg, Germany
Kingston, Ontario, Canada
Woerden, Utrecht, Netherlands