Xaos fractal zoomer
Fractals are really amazing, and more fascinating when they are moving.
With Xaos you have a freeware fractal zoomer with lots of filters, effects and algorithms.
You really should have a look at this, because it is hard to describe with words.
If you love the Mandelbrot, you will certainly like this tiny and powerful realtime zoomer.
Have a nice journey into the world of visualized formulas.