Question: Where are the headquarters of the educational foundation for the curriculum used at the school in Vilnius?

Context paragraphs:
KXNG: KXNG is a non commercial radio station serving the Houston–The Woodlands–Sugar Land metropolitan area.  It broadcasts on a frequency of 91.7 Megahertz on the FM dial.  It also rebroadasts on 2 translators, 91.3 in the Medical Center, and 99.5 in Southwest Houston, Missouri City, and Sugar Land/Fort Bend County.  KXNG programming is also available on the secondary digital channel of parent station 89.3 KSBJ.  The station is owned and operated by the KSBJ Educational Foundation.  KXNG formerly operated as a Classical music station owned and operated by the University of Houston System from 2011 to 2016, under the KUHA call letters.  The low ratings and financial losses of the Classical format led the University of Houston to sell the station to the KSBJ Educational Foundation, who launched the current Christian CHR/Hip Hop format in 2016.

Education in ancient Rome: Education in ancient Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the late Republic and the Empire.  The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen.  The system incorporating the Greeks was connected to Athena (Greek) and Minerva (Roman), the Greek and Roman Godess of Wisdom.  Due to the extent of Rome's power, the methodology and curriculum used in Rome was copied in its provinces, and thereby proved the basis for education systems throughout later Western civilization.  Organized education remained relatively rare, and there are few primary sources or accounts of the Roman educational process until the 2nd century AD.  Due to the extensive power wielded by the "paterfamilias" over Roman families, the level and quality of education provided to Roman children varied drastically from family to family; nevertheless, Roman popular morality came eventually to expect fathers to have their children educated to some extent, and a complete advanced education was expected of any Roman who wished to enter politics.

Core Curriculum (Columbia College): The Core Curriculum was originally developed as the main curriculum used by Columbia University's Columbia College in 1919.  Today, customized versions of the Core Curriculum are also completed by students in the School of Engineering and Applied Science and the School of General Studies (the other two undergraduate colleges of Columbia University).

Abidullah Ghazi: Abidullah Ansari Ghazi (born 6 July 1936) is a prominent Indian American author, educator and poet.  He has written more than 140 books of Islamic educational textbooks for children and the executive director of IQRA' International Educational Foundation.  His books have been translated into many languages and are part of the curriculum Islamic schools in more than 40 countries.  He was named by the Royal Islamic Strategic Studies Centre as being among the "500 Most Influential Muslims in the World."

International Baccalaureate: The International Baccalaureate (IB), formerly known as the International Baccalaureate Organization (IBO), is an international educational foundation headquartered in Geneva, Switzerland and founded in 1968.  It offers four educational programmes: the IB Diploma Programme and the IB Career-related Programme for students aged 15 to 18, the IB Middle Years Programme, designed for students aged 11 to 14, and the IB Primary Years Programme for children aged 3 to 12.  To teach these programmes, schools need to be authorised by IB.

St. Catherine's British School: St Catherine's British School is an international school, in Lykovrissi, Athens, Greece.  Founded in 1956, the school now teaches over 1100 children and young adults from all over the world and is staffed by more than 120 teachers and associated personnel.  St Catherine's follows the National Curriculum used in the United Kingdom, and lessons are taught primarily in the English language.

WLMS: WLMS (88.3 FM) was a radio station broadcasting a Contemporary Christian format until October, 2008, licensed to Lecanto, Florida, USA.  The station was owned by the Roman Catholic Diocese of Saint Petersburg from 1992 to 2008, simulcasting programs from WBVM in Tampa.  In October, 2008, the license for WLMS was sold to Central Florida Educational Foundation and WLMS ceased broadcasting to enable a power increase by WPOZ, also owned by Central Florida Educational Foundation.

Direct marketing educational foundation: Established in 1966 by the Direct Marketing Association, the Direct Marketing Educational Foundation (DMEF) is now known as Marketing EDGE, and is a 501(c)(3), nonprofit educational foundation supported by tax-deductible contributions.  For professors and college students, it introduces and provides educational resources on the business of direct/interactive marketing.  Marketing EDGE programs are designed to encourage participation, equip professors with up-to-date educational resources and prepare students for careers in this rapidly evolving field.

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.  It was established in 2004 and provides education in the English language.  As of 2010, the curriculum at Vilnius International School is the International Baccalaureate educational system, making it the first school in Lithuania to offer the IB Primary Years Programme (PYP).  In 2013 school year, the school had 285 students: 40% Lithuanians, 18% half Lithuanian, and 42% foreigners from 34 different nations.

United States-India Educational Foundation: The United States-India Educational Foundation (USIEF) (formerly known as the United States Educational Foundation in India) is an international foundation dedicated to higher education in India and the United States.  Its primary focal points include administering the Fulbright Program to Indian and American students, faculty and professionals; encouraging international engagement of Fulbright scholars; advising students in India of higher education opportunities in the United States; and linking higher education institutions in the USA and India.  In addition to administering the Fulbright-Nehru programs in India, the Foundation also administers several Fulbright grants, including the Hubert H. Humphrey Fellowships; New Century Scholars Program, Teacher Exchange Program; International Fulbright Science and Technology Award; and the Foreign Language Teaching Assistant Program.

Supporting paragraphs: Vilnius International School International Baccalaureate
Answer: Geneva, Switzerland