Mapping Points of Interest

There is an internet site called POI Factory. It is free but you must create an account to use it. The points of interest files are subscriber generated and maintained. They come in various formats that can be transferred into your GPS or trip planner (GPX, KML or CSV, for example), but it is somewhat of a "hands on" process. The iOS world (Apple) has an app called POI viewer which helps to visualize the POI locations. This has become much harder due to the restrictions Google has put their Maps offering, as schlep1967 has pointed out above. There is also a site called GPS Visualizer which is also somewhat "hands on."