Tübingen, Germany
Prenzlau, Brandenburg, Germany
Crossville, TN, USA
Skopje, Macedonia (the former Yugoslav Republic of)
Chongqing, Chongqing, China
San Francisco, CA, USA
Cluj-Napoca, Cluj County, Romania
Regensburg, Bayern, Germany
Maloyaroslavets, Kaluga Oblast, Russian Federation
Frankfurt am Main, Hesse
Würzburg, Bavaria, Germany
Kyoto, Kyoto, Japan
