Vitruvian GIF

Da Vinci's Vitruvian Man as an animated GIF, by Emily on Supercentral II.
The figure inscribed in the circle turns independently of the figure in the square.
You watch it rotate slo-o-o-wly as the file is loading (depending on your computer speed, I guess).
When it is fully loaded it spins at a stately pace.
The subject is pretty overdone--him again?--but this GIF is very crisply and elegantly made.
It deserves to be the definitive version.