O’Reilly Radar > From the Labs: Photosynth
Pretty amazing stuff. What it does: Imagine you took a lot of photos of a certain object or building or place. Photosynth analyzes those Photos and reconstructs the content (e.g. the object or place) in 3D space!
The tech preview (which -surprisingly- works in IE 6 and 7) shows the idea pretty good. Give it a try!