The Simpsons are awesomely hilarious. I remember when my parents thought it was too vulgar for my child mind to handle. And now it's a very tasteful and often smart cartoon. Some dude took the time to collect all the different locations from every episode and created this completely insane map
I guess if you ever plan to visit The Simpsons you'll know how to get around.
Oh, if you want to brush up on your episodes, here's where you can watch them online for free, legally:The Simpsons Episodes.