Lisbon, Portugal
Torino, Piemonte, Italy
Piovà Massaia, Piedmont, Italy
Den Haag, Zuid-Holland, Netherlands
Sant'Andrea, Veneto, Italy
Livergnano, Emilia-Romagna, Italy
Baierbrunn, Bayern, Germany
Riehen, Basel-Stadt, Switzerland
Wageningen, Gelderland, Netherlands
Dresden, Saxony, Germany
Jura, Switzerland