Mozilla family of browser supports a variety about: commands. Today I
searched inside the source code to see where they have been
implemented and the complete list of the commands it supports. Here
is the list Firefox supports. Type these urls in your Firefox browser
for countless hours of fun (for very low values of fun).
This looks very obvious in hindsight, but I am sure not many would have thought about this. This guy uses the HL's source engine to produced a model of the Kaufmann House by Frank Lloyd Wright. Using the Source Engine, as opposed to more traditional Architectural Software, allows the use of dynamic lighting and a real-time walkthrough of the scene in high resolution.
I was out of Bangalore (had to go to Delhi) from 12th to 17th Jan and I did not have access to net at that time. I noticed that Delhi is still an iPod free city and it really is cold there