Duisburg, North Rhine-Westphalia, Germany
Oslo, Oslo, Norway
Rostov-on-Don, Rostov Oblast, Russian Federation
Freiberg, Sachsen, Germany
England, United Kingdom of Great Britain and Northern Ireland
Bottrop, Nordrhein-Westfalen, Germany
Aarhus, Central Denmark Region, Denmark
Aachen, North Rhine-Westphalia, Germany
Rome, Lazio, Italy
Leipzig, Saxony, Germany
Essen, North Rhine-Westphalia, Germany
Dortmund, Nordrhein-Westfalen, Germany
