This fascinating online exhibit deals with the use of pigment and provides visitors with an "Overview", "History of Use", "Making the Pigment" and "Technical Details" for dozens of pigments that are "some of the most historically important in art". Visitors can click on "Choose a Pigment" to see a 3D image of such beauties as Cerulean Blue, Ultramarine, Naples Yellow, and Orpiment. Visitors can see a timeline of when these pigments were discovered, if they have continued being used, and in what form, artificial or natural. Carbon Black and Bone Black were the earliest pigments, and are still used today, and Titanium White is the most recent discovery, and it came into existence in 1921. The "Make Paintings" link is where visitors will probably have the most fun on the site, as they can see the progress of a painting in watercolor, pastels, oil, acrylic and the now little used method of egg tempera. Additionally, each technique is explained in detail, highlighted by photos that visitors can zoom in on for closer scrutiny.