Ben Fry is a fabulous designer/artist/computer scientist who focuses on visualizing data.  This project, called Distellamap,  (a spin-off of Dismap) highlights the beauty of code.  The project features the code of 6 different Atari games overlaid with curves to show its 'go to' elements.  The visualization emphasizes the flow of the code, showing it off as a complex piece of poetry.  (Found most recently through Pica + Pixel).