Plovdiv, Plovdiv, Bulgaria
Irun, Basque Country, Spain
Pasai San Pedro, Basque Country, Spain
Sofia City Province, Bulgaria
Tokyo, Japan
Hanoi, Hanoi City, Vietnam
Donostia-San Sebastian, Basque Country, Spain
Hanoi, Hanoi, Viet Nam
San Sebastián, Basque Country, Spain
Ibarra, Basque Country, Spain