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Smithsonian Institution Building

Washington, DC
  • Photo credit: Robert Lyle Bolton / CC BY-SA 2.0.

This Norman Revival building was originally designed by James Renwick, Jr. after a nationwide design competition in 1846. Though officially named the Smithsonian Institution Building, it is more commonly referred to as the Castle. The site was designated a National Historic Landmark in 1965 and listed on the National Register of Historic Places in 1966. Today, the building serves as a visitor information center and institution headquarters.

Silman’s past work at the Castle has included interior renovations, exterior assessments, seismic condition assessments, perimeter security, and blast protection upgrades.

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