Ben Fry (Author of „Visualizing Data“ http://www.oreilly.de/catalog/9780596514556/index.html) published some images of programms which look very impressive.
Pac-Man for example:
On his website http://benfry.com/distellamap you find more pictures.
Visualizing sourcecode
[…] einiger Zeit habe ich bereits über die Visualisierung von Sourcecode […]