GoCity – Code City metaphor for visualizing Go source code
Reminds me of FSV: http://fsv.sourceforge.net/screenshots/10.png (which was a clone of some even earlier SGI demo app  - http://www.siliconbunny.com/fsn-the-irix-3d-file-system-tool...)Anyone know of other metaphorish visualizations that might be useful for navigating code or graphs?