It's Six Flags Great America. It's kinnda neat to see it from above. However, what I liked was the service road going through the middle of it. I am a big geek and love to watch those shows on the Discovery Channel that show how theme parks, major attractions, and so on operate day in and day out. I remember hearing the vehicles aren't allowed on the pedestrian walkways of SFGA but that they could get to anywhere in the park because of the service road. This is also why SFGA is layed out in a circle. You can think I'm a huge dork, but at least I found it interesting.