Photosynth is a really cool product out of live labs. It's sort of an uber photo collage application. It takes photos taken from different people, at different resolutions and different times, and collects them into a 3d view of a location that you can navigate around.
CNN.com worked with Photosynth to show the world the Moment of Obama's Inauguration. It's a pretty cool way to view history.
Check it out:
Hope this Helps,
James Brundage [MSFT]