Due to the Metrorail shutdown March 16, our D.C. museums will open at noon, except the Smithsonian American Art Museum, National Portrait Gallery, Udvar-Hazy Center, and National Zoo which will open on time. The Castle will open at 10:30 a.m.
Skip navigationThe Smithsonian Institution—the world’s largest museum and research complex—includes 19 museums and galleries and the National Zoological Park.
Most Smithsonian museums and the National Zoo are free and open every day of the year except December 25. For hours of operation, see information on planning your visit or select a museum from the list.
Note: Additional Smithsonian exhibitions and events can be found in the S. Dillon Ripley Center on the National Mall.
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Explore our outdoor garden exhbitions, designed to complement the museums they border and enhance your overall museum experience of learning, appreciation, and enjoyment.
From mid-April through September there are weekly garden tours available (weather permitting).