Simple categories matching metropolitan:

• region,
• location,
• facility,
• area,
• library,
• county,

Members with property metropolitan:

• market,
• civic_office,
• hospital,
• large_city,
• landfill_site,
• king_county,
• city,
• cook_county,
• atlanta_region,
• charleston_county,
• canton,
• card_room,
• brisbane_city,
• bronx_county,
• boise_city,
• byron_bay,
• bay_area,
• taipei_city,
• harris_county,
• somerset_county,
• suburban_area,
• allegheny_county,
• county,
• western_suburb,
• tokyo_area,
• kansas-city_region,
• university,
• cologne,
• fulton_county,
• town,
• santa-clara_county,
• osaka_area,
• orange_county,
• capital_region,
• motley_county,
• los-angeles_area,
• northeastern_megalopolis,
• detroit_area,
• dane_county,
• electrical_plant,
• school,
• capital_city,
• local_suburb,
• long_island,
• anchorage,
• hudson_county,
• taichung_city,
• seoul_region,
• beijing_municipality,
• state_college,
• state_library,
• los-angeles_county,
• census_tract,
• suburb,
• hamilton_county,
• tokyo_region,
• heating,
• region,
• museum,