This is really clever but the ads are a bit annoying on the link. The picture below is to illustrate it but for it to work you need to click on the link.

This painting is truly remarkable. Even more amazing though, is that the canvas has been computerized. When you click on the link below, a much bigger version of the computerized painting appears. Run your cursor over the people. The program tells you who they are - every single one of them. BUT (click on a person) and you obtain the individual’s life history.

http://cliptank.com/PeopleofInfluencePainting.htm