If this game doesn't work on your computer, go here for help.
by Thomas Mueller

This one is more like the tree fractal.  It's called a geometric fractal.  Single click on it to increase the states of growth and double click to go 3-D!  Drag your cursor to move the fractal around.

Coolmath's Fractal Generators:   1 - 2 - 3 - 4 - 5

If you really want to get into it, you can download a free program called Fractint. I also highly recommend you check out a tutorial at Fractalarts.com if you want to be a serious fractal artist.