software/photosynth

What is Photosynth?

Photosynth is a powerful set of tools for capturing and viewing the world in 3D. You can share these views with your friends on Facebook, publish them to Bing Maps, or embed them in your own Wok, publish them to Bing Maps, or embed them in your own Web site. Here’s the big picture:

How do I Capture the World in 3D?

Photosynth offers two styles for creating immersive 3D experiences: synths and panoramas. The following diagram shows the differences between them, and the tools available for creating them.

for more details visit photosynth.net
this is information is taken from the about page of photosynth.

so,as you can see this is a great software created by Microsoft labs availiable for free ,so next time you go on a vacation and save your memories..use this software...
you can also find a TED video on this by the designer of this software