Maps gives you quick access to maps all across the world. We use the collaborative OpenStreetMap database, enabling our users to make smaller changes to places and points-of-interests. Plan your trip or check where that friend lives. We are able to do this thanks to the open source GraphHopper service. If your privacy settings allows, Maps will use the GeoClue service to find your location. And if you have a Facebook or Foursquare account we allow you to check-in there.