What you are about to watch is truly remarkable, and it just gets better as it goes.
Using photos of oft-snapped subjects (like Notre Dame) scraped from [Flickr], Photosynth (based on Seadragon technology) creates breathtaking multidimensional spaces with zoom and navigation features that outstrip all expectation. Its architect, Blaise Aguera y Arcas, shows it off in this standing-ovation demo.
See more on Seadragon and Photosynth.