Puppet Parade - Interactive Kinect Puppets. 4D-Architecture. The New York Public Library Helps You Turn 100-Year-Old Photographs Into 3-D GIFs. The New York Public Library has an archive of over 40,000 historical stereographs, many well over a hundred years old.
Stereographs are regular photographs, except in pairs, with the perspective very slightly different. Essentially, stereographs are what you were looking at through your ViewMaster as a kid. And now the NYPL has created a pretty amazing tool they're calling the Stereogranimator that lets users create animated 3-D GIFs from the photos in the archive. Moving the image back and forth between the two perspectives tricks the eye into seeing depth--it's kind of a lo-fi way to get around that problem of both eyes seeing the same thing. (Regular 3-D beams a different image to each eye.)