Where are the headquarters of the educational foundation for the curriculum used at the school in Vilnius?
Vilnius International School: Vilnius International School (Lithuanian: "Vilniaus tarptautinėje mokykla" ) is a private primary, middle and upper school located in the Old Town of Vilnius, Lithuania. Vilnius International School:  It was established in 2004 and provides education in the English language.
i don't know