Saint Petersburg, Saint Petersburg, Russia
Strasbourg, Grand Est, France
Dresden, Saxony, Germany
São Luís, Maranhão, Brazil
Sankt Augustin, North Rhine-Westphalia, Germany
Valençay, Centre-Val de Loire, France
Bonn, North Rhine-Westphalia, Germany
Teresopolis, Rio de Janeiro, Brazil
Zülpich, North Rhine-Westphalia, Germany
Paderborn, Nordrhein-Westfalen, Germany