Bremen, Bremen, Germany
Halle (Saale), Saxony-Anhalt, Germany
Goettingen, Lower Saxony, Germany
Flensburg, Schleswig-Holstein, Germany
Timișoara, Județul Timiș, Romania
Wien, Austria
Iserlohn, NRW, Germany
Madrid, Madrid, Spain
Schwelm, North Rhine-Westphalia, Germany
Paderborn, North Rhine-Westphalia, Germany
Tehran, Tehran, Iran, Islamic Republic Of
Barcelona, Spain
