There are ways to add pictures as the tags of the OSM objects - https://wiki.openstreetmap.org/wiki/Key:wikimedia_commons https://wiki.openstreetmap.org/wiki/K

There are ways to add pictures as the tags of the OSM objects - https://wiki.openstreetmap.org/wiki/Key:wikimedia_commons https://wiki.openstreetmap.org/wiki/Key:wikimedia_commons - https://wiki.openstreetmap.org/wiki/Key:panoramax https://wiki.openstreetmap.org/wiki/Key:panoramax - https://wiki.openstreetmap.org/wiki/Key:mapillary https://wiki.openstreetmap.org/wiki/Key:mapillary Mobile apps can use this data to either give links to them (e.g. CoMaps) or display them in the app (e.g. OsmAnd)