Microsoft Live Labs are developing a very promising new technology called Photosynth that collects photos of a scene from all over the web and reconstructs a 3-dimensional model from them. You can then navigate through the scene and zoom in to all the photos, some with very high detail. It’s still in an early stage, but some day you will hopefully be able to do it with your own photos. Check out the demo (needs Internet Explorer, of course), or, for those of you without IE, have a look at the videos. High wow-factor, really.