Analyzing 387656 Castillo de San Marcos Superclasses: 1785071 - fort 30304302 - National Park System unit 893775 - National Monument of the United States 18691599 - military facility 41176 - building 57821 - fortification 6852233 - military building 13226383 - facility 17350442 - venue 811979 - architectural structure 17334923 - location 2221906 - geographic location 27096213 - geographic entity 27096235 - artificial geographic entity 1496967 - territorial entity 618123 - geographical object 82794 - geographic region 386724 - work 811430 - construction 15401930 - product 16686448 - artificial entity 35120 - something 488383 - object 35145743 - human-made landform 6671777 - structure 58416391 - spatial entity 8205328 - artificial physical object 1454986 - physical system 223557 - physical object 30060700 - object of science 4406616 - concrete object 58415929 - spatio-temporal entity 58778 - system 15642541 - human-geographic territorial entity 15916867 - administrative territorial entity of a single country 56061 - administrative territorial entity 65148973 - protected area of the United States 852446 - administrative territorial entity of the United States 473972 - protected area Subclasses: Instances: Properties: label Plabel Castillo de San Marcos description Pdescription oldest masonry fort in the United States alias Palias Fort St. Mark alias Palias Fort Marion alias Palias Castillo de San Marcos National Monument page Ppage Castillo_de_San_Marcos 649 NRHP reference number e 66000062 625 coordinate location v 29.897778;-81.311389 17 country q 30 United States of America 131 located in the administrative territorial entity q 487988 St. Augustine 814 IUCN protected areas category q 14545646 IUCN category V: Protected Landscape/Seascape 18 image v Aerial view of Castillo De San Marcos - 02 cropped 01.jpg 1566 GeoNames ID e 4150202 856 official website v https://www.nps.gov/casa/index.htm : 407 language of work or name q 1860 English 0 0 0 1435 heritage designation q 19558910 place listed on the National Register of Historic Places : 580 start time v -101433600 : 1810 named as s Castillo de San Marcos National Monument : 2868 subject has role q 20856087 NRHP district 571 inception v -1426809600 571 inception v -8680867200 : 571 inception v 3515 NPCA ID e castillo-de-san-marcos-national-monument 3516 National Park Foundation ID e castillo-de-san-marcos-national-monument 1667 TGN ID e 1102075 590 GNIS ID e 307911 186 material used q 23757 limestone 4083 NPS unit ID e CASA 3609 Recreation.gov gateway ID e 2620 4170 America's National Parks ID e 5161 1225 U.S. National Archives Identifier e 10038405 5904 ASCE Historical Civil Engineering Landmark ID e castillo-de-san-marcos 137 operator q 308439 National Park Service 7129 PEPC park ID e 363 3418 Google Play Store app ID e gov.nps.casa 3430 SNAC Ark ID e w6gz51r0 7772 Atlas Obscura identifier e castillo-de-san-marcos