GARDENS

• Enid Haupt Garden, behind the Smithsonian castle (BEAUTIFUL during cherry blossom time...escape the crowds of the Tidal Basin and picnic here)
• U.S. National Arboretum (free, beautiful grounds, Bonsai Museum, nice place to bike)
• National Botanic Gardens (wonderful Christmas displays with trains)
• River Farm Garden Park (close, free, rarely crowded, beautiful)
• Meadowlark Botanical Gardens
• Dumbarton Oaks (located in Georgetown; museum and gardens are open to the public)