Köln, NRW, Germany
Chernivtsi, Chernivets'ka oblast, Ukraine
Jena, Thuringia, Germany
Kuenzelsau, Baden-Wuerttemberg, Germany
Berlin, Berlin, Germany
Kraków, Lesser Poland Voivodeship, Poland
Lviv, Lviv, Ukraine
Köln, Nordrhein-Westfalen, Germany
Tallinn, Estonia
Dortmund, North Rhine-Westphalia, Germany
San Francisco, California, United States