Photosynth is a cool tool for capturing and viewing the world in 3D. This tool takes a series of photos and weaves them together to create a virtual tour. You and your students can explore the many photosynths already created simply by visiting the website, or create your own by signing up for an account.

Please enjoy this photosynth of the Chicago Skyline.
http://photosynth.net/embed.aspx?cid=07d27739-ccc5-484e-acb6-89f69fbba49b&delayLoad=true&slideShowPlaying=false

Try it for yourself at phyosynth.net