The Tube Map Evolution page uses HTML5 canvases and JavaScript to display a smoothly-morphing evolution of the London Underground Map.

There are no images used in the animations: it's all hand-crafted vector graphics. The scripts compress down to less than 32 kilobytes.

The mouse controls are:

If you don't have access to HTML5, you can see a (very) rough approximation of the evolution via this animated GIF.

To make suggestions or leave a comment, visit my blog.