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About. Completed in 1855, the Castle is our signature building. The Castle closed Wednesday, Feb. 1, 2023, for its first major renovation in more than 50 years. But even when the Castle is closed, you can plan your Smithsonian visit at our Virtual Visitor Center and explore the Castle online.
Coordinates: 38°53′19.49″N 77°1′33.59″W. View facing northeast, 1864. The Smithsonian Institution Building, more commonly known as the Smithsonian Castle or simply The Castle, is a building on the National Mall housing the Smithsonian Institution 's administrative offices and information center.
- October 15, 1966
- James Renwick, Jr.
- 1849–1855
- Washington, D.C.
Learn about the first and oldest building of the Smithsonian, which closed in 2023 for a major renovation. Explore its history, architecture, collections, and virtual events while it is closed.
Learn about the history and features of the Castle, the signature building of the Smithsonian Institution and home to the Visitor Center. Find out its location, measurements and year of completion.
The Smithsonian Institution area around the National Mall. Construction began on the Smithsonian Institution Building ("the Castle") in 1849. Designed by architect James Renwick Jr., its interiors were completed by general contractor Gilbert Cameron. The building opened in 1855.
- 6,375 (as of 28 March 2020[update])
- Lonnie Bunch, Secretary of the Smithsonian
- August 10, 1846; 177 years ago
Learn about the Castle, the first building of the Smithsonian Institution, designed by James Renwick, Jr. in the Norman style. Explore its history, architecture, functions, and landmarks, from its construction in 1855 to its current role as an administrative center.
Category. Chronology of Smithsonian History. Ewing, H., & Ballard, A. (2009). A guide to Smithsonian architecture. Washington, D.C.: Smithsonian Books. Summary. Construction began on the Smithsonian Institution Building better known as the Castle in 1846.
