Eric Fischer did this awesome project in which he mapped photos taken by tourists, versus photos taken by locals. Blue dots represent the local photos, red dots are tourists, yellow could be either. That long red nose on the right, jutting out East into Lake Michigan, about halfway down the map? That's Navy Pier, home of Wait, Wait Headquarters. I'd like to think we're the ones attracting the tourists, but there is a Ferris Wheel on the roof.
Check out the whole thing, and possibly your city, here.