National Museum of American History

This disentanglement puzzle consists of two entangled bent nails that are to be separated.A solution to the puzzle is given in a 1920 A.C. Gilbert publication cited below.

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Smithsonian National Museum of American History Renovation by SOM - Skidmore, Owings & Merrill

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National Museum of African American History & Culture

The Smithsonian National Museum of American History's New Exhibits Are Incredibly Timely

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File:National Museum of American History.jpg - Wikimedia Commons

Washington DC's Smithsonian Museum of American History (Full Tour)

National Museum of American History, Washington, DC, USA

Historians and History Museums, Perspectives on History

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Smithsonian National Museum Of African American History & Culture Is Washington DC's Hottest Ticket