Nashville is a marketarea and its consensus geometry is derived from whosonfirst.
{"mz:is_ceased":0,"geom:latitude":36.071113,"wof:controlled":["wof:parent_id","wof:hierarchy"],"wof:name":"Nashville","counts:names_total":2,"wof:placetype":"marketarea","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"empire_id":136253057,"marketarea_id":1360665363}],"mz:is_deprecated":0,"lbl:latitude":36.129279,"geom:area":5.389513,"geom:longitude":-86.794331,"wof:id":1360665363,"counts:concordances_total":2,"geom:type":"Polygon","wof:lastmodified":1583789554,"wof:belongsto":[102191575,85633793,136253057],"wof:concordances":{"digitalenvoy:metro_code":659,"nielsen:id":659},"mps:latitude":36.129279,"name:eng_x_variant":["Nashville, TN"],"wof:repo":"whosonfirst-data-admin-us","src:geom":"whosonfirst","wof:country":"US","counts:names_preferred":1,"geom:area_square_m":5.386385271354422E10,"wof:tags":[],"counts:names_variant":1,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":1,"geom:bbox":"-88.530346,34.988253,-84.731839,37.159346","name:eng_x_preferred":["Nashville"],"mps:longitude":-87.137529,"wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-87.137529,"wof:geomhash":"92947e36e96d6350905285ad098c3c39","wof:parent_id":85633793,"wof:placetype_names":["marketarea"],"mz:hierarchy_label":0,"wof:placetype_id":1360666019,"edtf:cessation":"uuuu"}