@openstreetmap/id-tagging-schema/data/presets/tourism/viewpoint.json

The OpenStreetMap tagging model used by the iD editor

{
    "icon": "temaki-spotting_scope",
    "geometry": [
        "point",
        "vertex",
        "area"
    ],
    "fields": [
        "direction"
    ],
    "moreFields": [
        "level"
    ],
    "tags": {
        "tourism": "viewpoint"
    },
    "name": "Viewpoint"
}