Stuttgart, Baden-Wuerttemberg, Germany
Busan, Busan, republic of Korea
Ensenada, Baja California, Mexico
Berlin, Berlin, Germany
Tokyo, Tokyo, Japan
Munich, Bavaria, Germany
Paderborn, Nordrhein-Westfalen, Germany
Hangzhou, Zhejiang, China
Tainan, Tayouan, Taiwan, Province of China
Guangzhou, Guangdong, China
Nürnberg, Bayern, Germany