Supposing your clubs can only serve the Chicagoarea and you're looking to focus your ad spend where your competition is already serving, you can drill down by City --> Region --> Metroarea so that you understand where your dollars are going to...
According to the web site, they have "more cities" with "Bird's Eye images" that can "fit on one page" (that sounds a bit silly) but nevertheless they do offer a list of some major metro areas. No Chicago available?
For example, in the Baltimore/Washington Metroarea Google is working with Super Shuttle (a company that takes people to and from the area airports) and just one taxi company in Alexandria, Virginia. This service uses GPS data to pinpoint and map...
Many businesses have a target audience outside their main geographical area, such as a car dealership that is physically located outside of the Chicagometroarea, but still targets the Chicagometroarea.