What is Castellón de la Plana?
{{Infobox settlement | name = Castellón de la Plana | settlement_type = [[Municipalities of Spain|Municipality]] | official_name = <!-- ''Castelló de la Plana'' --> | native_name = {{native name|ca|Castelló de la Plana}} | image_skyline = Castelló de la Plana des del Fadrí.jpg | image_alt = | image_caption = Central parts of Castelló de la Plana. | image_flag = Bandera de Castelló de la Plana-2.svg | image_shield = Escut de Castelló ornamentat-2.svg | nickname = | motto = | image_map = Localització de Castelló de la Plana respecte del País Valencià.png | map_caption = Location in the Valencian Community | pushpin_map = Spain | pushpin_label_position = | pushpin_map_caption = Location in Spain | subdivision_type = Country | subdivision_name = {{flag|Spain}} | subdivision_type1 = [[Autonomous communities of Spain|Autonomous community]] | subdivision_name1 = {{flag|Valencian Community}} | subdivision_type2 = [[Provinces of Spain|Province]] | subdivision_name2 = [[Province of Castellón|Castellón]] | subdivision_type3 = [[Comarcas of Spain|Comarca]] | subdivision_name3 = [[Plana Alta]] | subdivision_type4 = [[Judicial district]] | subdivision_name4 = Castelló de la Plana | seat_type = <!-- [[Capital (political)|Capital]] --> | seat = | coordinates = {{coord|39|58|59|N|0|1|59|W|region:ES_type:city|display=inline,title}} | coordinates_footnotes = | elevation_m = 30 | elevation_min_m = 0 | elevation_max_m = 609 | area_footnotes = | area_total_km2 = 108.78 | established_title = <!-- Founded --> | established_date = | population_as_of = {{Spain metadata Wikidata|population_as_of}} | population_footnotes = {{Spain metadata Wikidata|population_footnotes}} | population_to