National Gallery of Art Sculpture Garden
http://www.nga.gov/exhibitions/sculptureinfo.shtm
Located on the National Mall at 7th Street and Constitution Avenue NW, is bounded by Constitution Avenue and Madison Drive and by 7th and 9th Streets NW.
Jazz in the Garden is a free concert series featuring an array of jazz artists performing a wide variety of styles including salsa, blusion, xylophone, and Afrofunk, every Friday evening from 5pm to 8:30pm at the National Gallery of Art Sculpture Garden.
Guests may purchase food and beverages from the Pavilion Café and its carts located around the Garden or bring their own picnics.
Alcoholic beverages may not be brought to the premises from outside and are subject to confiscation. Security officers reserve the right to inspect all items brought into the Sculpture Garden. For the safety of visitors and works of art, access to the Sculpture Garden will be limited if the space becomes too crowded.
Concerts may be cancelled due to excessive heat or inclement weather.