OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. The geodata underlying the map is considered the primary output of the project. The creation and growth of OSM has been motivated by restrictions on use or availability of map data across much of the world, and the advent of inexpensive portable satellite navigation devices.
Similar to Wikipedia OpenStreetMap is community driven and free. No trackers, no ads – therefore I’d give 5/5 blocks. They also rely on donations: https://wiki.openstreetmap.org/wiki/Donations