Uppsala, Uppsala County, Sweden
Tbilisi, Tbilisi, Georgia
Thessaloniki, Decentralized Administration of Macedonia and Thrace, Greece
Istanbul, Istanbul, Turkey
Riga, Riga, Latvia
Wuerzburg, Bavaria, Germany
Alfter, Nordrhein-Westfalen, Germany
Darmstadt, Hessen, Germany
Oldenburg, Niedersachsen, Germany
Leeds, England, United Kingdom of Great Britain and Northern Ireland