Essen, Nordrhein-Westfalen, Germany
Sheffield, South Yorkshire, England
Sandanski, Blagoevgrad, Bulgaria
Sofia, Sofia, Bulgaria
Saint-Nizier-du-Moucherotte, Auvergne-Rhône-Alpes, France
Aachen, North Rhine-Westphalia, Germany
Zagreb, City of Zagreb, Croatia
Lima, Peru
Erlangen, Bavaria, Germany
Ljubljana, Osrednjeslovenska, Slovenia
Lagos, Portugal
