Navit Navit map file format. https://wiki.navit-project.org/index.php/Binfile https://navit.readthedocs.io/en/latest/maps.html#binfile https://github.com/navit-gps/navit https://download.bbbike.org/osm/bbbike/Prag/ -> Navit (25 MB) To-Do See if the files contain enough vector information to be worth it