Tübingen, Baden-Württemberg, Germany
Sayanogorsk, Republic of Khakassia, Russian Federation
Sankt-Peterburg, Sankt-Peterburg, Russian Federation
Kraków, Lesser Poland Voivodeship, Poland
Denver, CO, USA
Sao Luis, Maranhao, Brazil
Cologne, North Rhine-Westphalia, Germany
Sofia, Sofia, Bulgaria
Gaziantep, Gaziantep, Turkey
Tomsk, Tomsk Oblast, Russian Federation
