Gorgeous pictures of snowflakes at this site, along with more information than I ever thought there would be about the little buggers.
My parents have often teased me about how long it would take me to walk the three blocks to school when I was a kid, usually assuming that I had to examine every snowflake I saw to see if they were really all different. In normal Alaskan winters, of course, there are a lot of snowflakes. Even in only three blocks.
That said, though, I never got quite this into examining snow. Probably because the downside to examining snowflakes was being out in the cold, and at ten years old, I was a bit short of the capital it would take to build my own laboratory for experiments like this. Bummer!
(Via /.)