Wuppertal, North Rhine-Westphalia, Germany
Chennai, Tamilnadu, India
Shenzhen, Guangdong, China
Ampang, Selangor, Malaysia
Mainz, Rhineland-Palatinate, Germany
Essen, North Rhine-Westphalia, Germany
Lincoln, NE, USA
Bochum, North Rhine-Westphalia, Germany
Cologne, North Rhine-Westphalia, Germany
Oberhausen, North Rhine-Westphalia, Germany
Düsseldorf, North Rhine-Westphalia, Germany
