Lets be honest, CSS would typically not be the first technology you would go to for building a visually effective interactive graph or chart, certainly not without at least a touch of Javascript. There are quite a few technologies you would think, Flash comes to mind first, followed by Javascript (thousands of jQuery plugins), you may even go for an SVG chart, or you may even like to use a graphic editor with interactive capabilities like Fireworks or Photoshop.

Having said all that, creating a pure CSS chart that is both visually beautiful and highly interactive, especially with CSS3, is very much possible, as this round-up proves.