Aacceess Maps
Detailed zoomable chicago maps, complete city information for hotels, restaurants and attractions, plus easy-to-use travel reservation systems. everything you need to plan the perfect trip!
http://www.aaccessmaps.com/show/map/us/il/chicago_metro_n
Lonely Planet
Map of chicago and travel information about chicago brought to you by lonely planet.
http://www.lonelyplanet.com/mapshells/north_america/chicago/chicago.htm