English: The Longfellow House–Washington's Headquarters National Historic Site — in Cambridge, Massachusetts.
- Built in the Georgian style in 1759.
- It served as the headquarters of George Washington (1775-1776). For almost fifty years (1837-1882), it was the home of noted American poet Henry Wadsworth Longfellow.
- Also known as the Vassall-Craigie-Longfellow House and, until December 2010, Longfellow National Historic Site.
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