Around 47:

• !!! airfield - http://wiki.openstreetmap.org/wiki/Tag:military%3Dairfield (also landuse, and pois if has name)
• barrier - we have a lot of these already, maybe add a few more? https://taginfo.openstreetmap.org/keys/barrier#values http://wiki.openstreetmap.org/wiki/Key:barrier
• blood_bank – http://wiki.openstreetmap.org/wiki/Tag:healthcare%3Dblood_donation and http://wiki.openstreetmap.org/wiki/Tag:healthcare%3Dblood_bank
• danger - could add http://wiki.openstreetmap.org/wiki/Tag:military%3Ddanger_area (also landuse and pois if has name), and for sea marks (see feature request: seamark-layer #822). 16/51.8513/0.8902
• defibrillator - http://wiki.openstreetmap.org/wiki/Tag:emergency%3Ddefibrillator
• !!! entrance - http://wiki.openstreetmap.org/wiki/Key:entrance – would this go into the buildings layer not pois?
• gaming - http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dadult_gaming_centre
• garden_centre - http://wiki.openstreetmap.org/wiki/Tag:shop%3Dgarden_centre
• golf - http://wiki.openstreetmap.org/wiki/Tag:shop%3Dgolf (we already have golf_coarse, so I think this is for a golf store
• grocery - http://wiki.openstreetmap.org/wiki/Tag:shop%3Dgrocery and related http://wiki.openstreetmap.org/wiki/Tag:shop%3Dgreengrocer
• harbor - http://wiki.openstreetmap.org/wiki/Harbour
  • harbour=yes or landuse=harbour 15/51.4963/-2.7199
  • military=naval_base 17/52.37419/4.91787
  • landuse=* tag values with their specific usage:
    • landuse=port_terminal 18/-27.36735/-55.98510
    • landuse=ferry_terminal (we have poi but not landuse?) 19/54.14756/-4.47411
    • landuse=container_terminal 16/49.4824/0.1768
    • landuse=shipyard 16/45.0595/12.2517
    • landuse=wharf 19/53.79418/-1.53600
    • landuse=quay 16/51.9451/1.0824
  • we already have leisure=marina and waterway=dock
  • Other features directly related to harbours
    • waterway=boatyard - see Add waterway=boatyard #673
    • waterway=boat_lift
    • shop=ship_chandler
    • man_made=crane - stationary, permanent crane - see cannot seem to find pois like Wind Turbines and Crane; #1417.
    • amenity=customs
    • amenity=harbourmaster
    • mooring=* – tell me more...
    • man_made=quay 19/51.52862/-0.24830
    • sanitary_dump_station=* - Septic waste pumpout facility
    • waterway=fuel or seamark:small_craft_facility:category=fuel_station (separate from amenity=fuel)
• heliport - related Add kind_detail for aerodrome #1277 and http://wiki.openstreetmap.org/wiki/Tag:aeroway%3Dheliport
• horse_riding – related to Add leisure features to pois, landuse, and roads layers #670 and http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dhorse_riding
• industry (why isn't this in landuse already?) is it a catch all for any http://wiki.openstreetmap.org/wiki/Key:industrial that we don't already filter for (see shop)?
• karaoke
  • amenity:karaoke_box http://wiki.openstreetmap.org/wiki/Proposed_features/Karaoke_box
  • amenity:karaoke
  • leisure:karaoke
• "lodging"
  We already have: tourism=[hotel,chalet,guest_house,hostel,motel].
  We could add: amenity=love_hotel – but this would need to be min_zoom 18?
• logging - http://wiki.openstreetmap.org/wiki/Tag:landuse%3Dlogging surprisingly in the 10,000 of uses! would be landuse
• !?! parking_garage. We already include http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dparking, but we could also include http://wiki.openstreetmap.org/wiki/Key:parking tags and promote [multi-storey,underground,rooftop] to kind:parking_garage?
• !!! residential_community ???
• !!! roadblock - Barrier:obstacle_type=roadblock http://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Tags/Humanitarian_Data_Model
• rocket - possibly http://wiki.openstreetmap.org/wiki/Tag:military%3Drange with extra bits, or some sort of spaceport thing like SpaceX? 12/51.5805/0.9834
• !!! scooter - related to shop=motorcycle? http://wiki.openstreetmap.org/wiki/Key:motorcycle:type
• shelter – related to Add leisure features to pois, landuse, and roads layers #670 and http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dshelter
• shop – when it doesn't match any other shop=* value?
• slaughterhouse http://wiki.openstreetmap.org/wiki/Tag:industrial%3Dslaughterhouse
• snowmobile – we have this for roads but not landuse/pois? http://wiki.openstreetmap.org/wiki/Tag:shop%3Dsnowmobile
  • shop=snowmobile
  • shop=atv - ATV / Quad shop
  • !!! shop=boat - Boat shop