Advertise within the largest interior garage space available in downtown Chicago. With garage space at Grant Park North, Grant Park South, Monroe Street and Millenium Park, you will have exclusive, uninterupted communication with 12,000 to 45,000 people a day. Based on the cost of fuel and parking rates, you can be sure we deliver an upscale target demo. Customize an entirely integrated parking level floor from directional signage to parking ticket backs to wall scapes and digital billboards. 'Exclusive Naming Rights' available, but limited. We have the ability to place ads in over 650 parking garages and that network is growing.