From National Geographic:
"The Statue of Liberty, the Lincoln Memorial, and Midnight Lightning at Yosemite. Three amazing subjects seen best in rich three-dimensional spaces, stitched together to create a 360 degree view! National Geographic is partnering with Nikon to present American Wonder...three iconic locations at your fingertips with Microsoft's Photosynth application."
Very cool right? Now, try to view those photosynths on a Mac. Eeeeh!