Virtual Compositing 2.0 Emerges from Web 2.0
Ridiculously Cool Technology - Watch more free videos
Mind blowing stuff, from Microsoft, of all places (naturally, via acquisition...).
The beginning segment is an eye-opener, but stay for the second-feature: a virtual 3-D model of Notre Dame Cathedral, as constructed from every image of it on Flickr.
This is what the 21st Century looks like.