OpenStreetMap (OSM) is a free editable map of the whole world. OSM allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth. The OSM data is publicly available via several mirrors. See [http://wiki.openstreetmap.org/wiki/Planet] for instructions on how to obtain OSM data. Tools for converting OSM data into a PostGIS database: * [http://sourceforge.net/projects/osm2postgis/ OSM2PostGIS] * [http://www.gdal.org/drv_osm.html ogr2ogr osm] * [https://imposm.org/ imposm] * [http://osmcode.org/libosmium/ libosmium] For more information go to: [http://www.openstreetmap.org/]