What historic site means?
Historic site
Historic site or Heritage site is an official location where pieces of political, military, cultural, or social history have been preserved due to their cultural heritage value. Historic sites are usually protected by law, and many have been recognized with the official national historic site status. A historic site may be any building, landscape, site or structure that is of local, regional, or national significance.
List of protected areas of the Philippines
World Heritage Site or part of a World Heritage Site
"A natural monument is a relatively small area focused on protection of small features to protect or preserve nationally significant natural features on account of their special interest or unique characteristics."