(Courtesy National Gallery of Art)
I.M. Pei-designed museum holds modern and contemporary American and European paintings, sculpture and prints by Matisse, Stella, Warhol, Kelly, Pollock, Picasso, Motherwell, et al. Features skylight tower galleries highlighting works by Alexander Calder and Mark Rothko; roof terrace with sculptures and views of the Capitol. Mon.-Sat. 10 a.m.-5 p.m., Sun. 11 a.m.-6 p.m. Free. Gift shop and cafes.