Old Patent Office Building Interior

The Old Patent Office Building is a historic building in Washington, D.C. that covers an entire city block between F and G Streets and 7th and 9th Streets NW in the Penn Quarter section of Chinatown. Built 1836–1867 in the Greek Revival style, the building first served as one of the earliest U.S. Patent Office buildings.
  • Location: Washington, D.C., U.S.
  • Built: 1836–1867
  • Architectural style: Greek Revival
  • Visitation: 1.3 million (2017)
  • Designated NHL: January 12, 1965
  • NRHP reference No.: 66000902
  • Added to NRHP: October 15, 1966
Data from: en.wikipedia.org
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