Vila Nova de Gaia, Porto, Portugal
Bat Yam, Center District, Israel
Basel, Basel, Switzerland
Santiago, Santiago Metropolitan Region, Chile
Gorinchem, South Holland, Netherlands
San Carlos de Bariloche, Río Negro, Argentina
Cologne, North Rhine-Westphalia, Germany
Florianópolis, Santa Catarina, Brazil
GWATT (THUN), Bern, Switzerland
Los Angeles, CA, USA
Leipzig, Saxony, Germany