The system enables you to target an area relative to an advertiser's location (by default), cities, regions (for example, states and provinces), countries, and the world.
City targeting can be used to specify numerous remote cities, and it enables you to specify a radius from a central point in the cities, so you can incorporate neighborhoods, suburbs, and areas in proximity to that central point.
Maybe such cities are areas from which you want to draw business to a single location. Maybe they are areas where your stores exist and you want to target shoppers near them.