I was still living in Minnesota when they completed the Mall of America and went there numerous times. Let me put it this way - with 400 stores and an indoor amusement park ("Camp Snoopy") for youngsters, I think I spent more money at the new Sears store than in the rest of the mall combined. Yet it blows away everything else on the map, including Times Square, Las Vegas, and both Disneys?
I grew up in Chicago and I'm kind of surprised that Navy Pier (on the Chicago lakefront) is Illinois' #1 attraction - they must be including a LOT of other attractions nearby to come up with that number.