Where to start with a collection like that held by the National Gallery? It's a truly daunting challenge, but fortunately the curators there have done some of the hard work already. This remarkable offering brings together 30 of their finest works, including Vermeer's "A Young Woman standing at a Virginal," Titian's "Bacchus and Ariadne," and Van Gogh's "Sunflowers." Visitors can click on each image to get in close to each item and read the brief essay accompanies each work. Also, each item has an Essentials area which features key facts about the work and an artist biography. The In Depth area of each site includes a technical bulletin and information from the National Gallery's. Finally, visitors can buy prints of their favorite paintings or look into purchasing licensing rights.