Leeuwarden, Friesland, Netherlands
Utrecht, Utrecht, Netherlands
Cologne, North Rhine-Westphalia, Germany
Hamburg, Hamburg, Germany
Sviadnov, Moravian-Silesian Region, Czech Republic
Köln, Nordrhein-Westfalen, Germany
Stuttgart, Baden-Württemberg, Germany
Thessaloniki, Greece
Riga, Latvia
Witten, North Rhine-Westphalia, Germany