Yekaterinburg, Sverdlovsk Oblast, Russian Federation
Issoire, Puy-de-Dôme, France
Seoul, Seoul, Korea (Republic of)
Xian, Shaanxi, China
Cheboksary, Chuvash, Russian Federation
Pyatigorsk, Stavropolskiy kray, Russian Federation
Gochang, Jeollabuk-do, Korea (Republic of)
Самара (Самарская обл.), Samara Oblast, Russian Federation
Nanning, Guangxi, China
Seeheim-Jugenheim, Hesse, Germany
