Madrid, Comunidad de Madrid, Spain
Yogyakarta, Special Region of Yogyakarta, Indonesia
Kiel, Schleswig-Holstein, Germany
Piedmont, Italy
Barcelona, Catalunya, Spain
Cambridge, MA, USA
Malang, East Java, Indonesia
Bolzano, Trentino-Alto Adige/South Tyrol, Italy
Hamburg, Hamburg, Germany
State of Paraná, Brazil
Münster, Nordrhein-Westfalen, Germany
