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The President's House Site
Philadelphia, Pennsylvania, USA
June 20, 2021, 13:04 UTC (09:04 local time)
© 2021 Yischon Liaw, All Rights Reserved.
This was the site of the President's House from 1790 to 1800. Archeological excavation has revealed foundations of the original house, a subsequent building, and slave quarters for George Washington's slaves.
History of the President's House (Official National Park Service page)