The Melbourne metropolitan area by OpenStreetMap.
OpenStreetMap
CC BY-SA 2.0
<a rel="nofollow" class="external free" href="https://wiki.openstreetmap.org/wiki/File:Melbourne_Metro_OpenStreetMap_September_23_2009_Mapnik_Update.png">http://wiki.openstreetmap.org/wiki/File:Melbourne_Metro_OpenStreetMap_September_23_2009_Mapnik_Update.png</a>