For a real world map, you'll need to work out a source of data. You can't just trace over a screenshot of Google Maps as it's restricted by copyright. OpenStreetMap might work if you are OK with the license terms.

http://www.openstreetmap.org/?lat=44...om=17&layers=M
http://www.openstreetmap.org/copyright
http://creativecommons.org/licenses/by-sa/2.0/