Leipzig, Saxony, Germany
Köln, Nordrhein-Westfalen, Germany
Cluj-Napoca, Cluj County, Romania
Cologne, North Rhine-Westphalia, Germany
Madrid, Madrid, Spain
Zhytomyr, Zhytomyrs'ka oblast, Ukraine
Düsseldorf, North Rhine-Westphalia, Germany
Witten, North Rhine-Westphalia, Germany