(I may have linked to this before, but I just stumbled across it again, and I wanted to be absolutely sure I mentioned it.) One of my favorite things about pop culture is when people get really into it. The Map of Springfield is the best example I've seen of this in a while. Created by two fans of The Simpsons who noticed the world was lacking an accurate map of the show's fictional town, it's obsessively detailed and fun and funny. Even if you haven't watched the show lately, locations like "Pizza on a Stick" and "Vicious Cycle" are laugh worthy on their own.