check: OpenStreetMap database ( ODBL license ) http://stackoverflow.com/questions/1875255/open-source-poi-database http://stackoverflow.com/questions/1875255/o

check: OpenStreetMap database ( ODBL license ) http://stackoverflow.com/questions/1875255/open-source-poi-database http://stackoverflow.com/questions/1875255/open-source-poi-d... "Planet.osm is the OpenStreetMap data in one file: all the nodes, ways and relations that make up our map. A new version is released every week. It's a big file (XML variant over 400GB uncompressed, 34GB compressed)." http://planet.openstreetmap.org/ http://planet.openstreetmap.org/