http://inspire.ec.europa.eu/codelist/BuildingNatureValue/caveBuildingINSPIRE Registry teamJRC-INSPIRE-SUPPORT@ec.europa.euhttp://inspire.ec.europa.eu/registry2015-08-18 17:28 PM CEST2015-08-18 17:28 PM CESTcave buildingA space hosting human or economic activity which is usually enclosed within rock with the addition of man-made exterior walls and which may contain structures comparable to the interior structures of freestanding buildings.