The Smithsonian Castle Will Close on February 1 for a 5-Year Renovation
WASHINGTON, D.C. – APRIL 20, 2018: An American Airlines plane departing nearby Ronald Reagan Washington National Airport flies near the Smithsonian Institution Building, popularly known as the ‘Castle,’ on the National Mall in Washington, D.C. The building, completed in 1855, houses the Smithsonian Institution’s administrative offices and information center. (Photo by Robert Alexander/Getty Images)