In stunning 3-D!

"Ha! Is it come to this?" thundered the Stranger: "then meet your fate: out of your Plane you go. Once, twice, thrice! 'Tis done!"
Flatland:
A Romance of Many Dimensions
Edwin A. Abbott

A friend of mine is seriously into stereo photography, and he has begun posting his work online. You can see it for yourself here. His galleries utilize a Java stereo viewer that offers several different viewing options, and he has some viewing instructions on his site. I ended up using using the "cross-eyed" method that requires no special glasses and, if you can do it, offeres the clearest viewing options. His viewing instructions have a link to a really good explanation of the "cross-eyed" method.

His site doesn't tell you how he takes the pictures, but I got to see it first hand. He built his own stereo camera array out of a pair of fairly low-end Canon point-and-shoot cameras. Apparently these cameras offer a wide array of undocumented features if you know how to enable them. Luckily there are plenty of camera hackers online to show you how. I my friend's case, he was able to rig a custom remote that connects the the USB port on each camera, allowing him to trigger both cameras in unison.

The results are really cool. Check them out!