Natural areas, protected zones, elements of the national heritage, natural monuments, flora, fauna, paleontological, archaeological and scientific sites, etc. are considered as irreplaceable assets and are subject to protection and conservation measures. In practice, this means that all such elements are surrounded by a protection area in which all building is forbidden, as laid down by the Valencia Parliament (Law 11/1994 of 27 December, 1995) and Spanish legislation (Law 16/1985 of 29 June on the Spanish National Heritage, 1985).