A fun class?

So it turns out that some of the classes I wanted for Fall '07 are either not available at all, not during a time I like, or not taught by a professor I like/need. I can either meet my quota of 15 units by taking another requirement class (such as BIOL 100/L), or I can take a "fluff" class, like perhaps FCS 207OL, and online version of "Nutrition for Life." But I wanted to know what other people thought was their most FUN class. It doesn't need to be an easy A, or have been dependent on the teacher-- I'm thinking a COURSE where the material was just really cool/interesting/fascinating/whatever.

Any suggestions? Erin thought I should go for Anthropology; Dad wants me to try an Art course. What do you think?