page_title: Washington International School
hierarchical_section_title: Washington International School
caption_attribution_description: English: The estate was designed by Charles A. Platt and constructed in 1912. The original occupants, the Parmelees, lived at the estate from its construction until 1940. From 1940 to 1958 it was occupied by Joseph E. Davies, who had served as the ambassador for the United States to Luxembourg, Belgium, and the Soviet Union and his second wife Post Cereal Company heiress Marjorie Merriweather Post. Today the estate is occupied by a campus for the Washington International School [2] and the Tregaron Conservancy. This is an image of a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 90000910
context_page_description: The Washington International School is a private international school in Washington, DC.
  Established in 1966, WIS was the first school in the Washington area to offer the International Baccalaureate program.
  The school has two campuses: the primary school in Georgetown, and the middle and upper school in Cleveland Park. The middle and upper school campus is located on the grounds of Marjorie Merriweather Post’s Tregaron Estate.
  The Washington International School's upper school was ranked as the 73rd most challenging high school in the country and the most challenging high school in the Washington, D.C., area by the Washington Post's "Ranking America's most challenging high schools" article in 2016. Popular school ranking website Niche listed it as the eighth best private high school in the DC area.
context_section_description: The Washington International School (abbreviated as WIS; Spanish: Colegio Internacional de Washington; French: École Internationale de Washington) is a private international school in Washington, DC.
  Established in 1966, WIS was the first school in the Washington area to offer the International Baccalaureate (IB) program.
  The school has two campuses: the primary school (grades PK-5) in Georgetown, and the middle and upper school (grades 6-12) in Cleveland Park. The middle and upper school campus is located on the grounds of Marjorie Merriweather Post’s Tregaron Estate.
  The Washington International School's upper school was ranked as the 73rd most challenging high school in the country and the most challenging high school in the Washington, D.C., area by the Washington Post's "Ranking America's most challenging high schools" article in 2016. Popular school ranking website Niche listed it as the eighth best private high school in the DC area.
caption: Tregaron Campus
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