Frankfurt am Main, Hessen, Germany
Wroclaw, Lower Silesia, Poland
Leeuwarden, Friesland, Netherlands
Essen, Nordrhein-Westfalen, Germany
Padova, Veneto, Italy
Riga, Riga, Latvia
Duisburg, North Rhine-Westphalia, Germany
Bratislava, Bratislava, Slovakia
Leeuwarden, Netherlands
