This is a very long video going into a Mandelbrot Set.  It is a lot of fun to watch and mesmerizing.  I wish the quality was better.  If anyone finds a better one please let me know.  

This reminds me of the Simpson's couch gag where the camera zooms into Homer's eye, closer and closer until we see cells, genes, atoms, universes, galaxies, world, Springfield, and back to Homer.  Homer then ends with a long, "Cooool." I can't find it because of the copyright laws, etc.