Microsoft Live Labs Photosynth demo of Obama inauguration on CNN

Sample screen showing the collage of photos. Look at the sections around the main central image. Each of them shows where additional overlapping photos appear. Clicking on the up/down/right/left arrows allows navigation. If the photos contain high resolution, significant zooming in is possible. Note also the legend at the upper-right. Moving backward or forward allows for rapid navigation through the presentation, as do the selection buttons (which look a little like leaves or a bunch of grapes).