On view in the Impressionist rooms of the National Gallery of Art are two paintings, Pandora and Saint Sebastian, by the French artist Odilon Redon.
I love these paintings. The entire Impressionist/Symbolist/Cubist/ etc. collection at the NGA is a great one, but the Redon's are really special. It's not hard to find a Cezanne or a Monet, but Redon's work is less well known and harder to find. If you find his work on display here, treasure it. Look at it for 30 minutes at a time, go back again and again. His paintings have a surrealist, dreamy quality to them, and he played with symbolism and mythology in his work. He was bold enough to leave some parts of the canvas totally bare; in other parts the paint is layered and wrought in such a manner that you can see the work behind it.
Though the NGA has a number of his paintings and drawings in their collection, these are the only two currently on display, and they weren't on view just a few years ago. Check them out now before they go into storage again!