Usually such sites are listed in a heritage register that is open to the public, and many are advertised by national visitor bureaus as tourist attractions.
Usually such a heritage register list is split by type of feature (natural wonder, ruin, engineering marvel, etc.).
Immoveable objects are usually buildings and monuments, locations such as settlements and gardens or areas such as landscapes, reserves and city districts.
In the case of a national heritage site in a populated area, monitoring and protection may be under the jurisdiction of a fire department or local police department, whereas more remote sites may be under the protection of a central conservation agency.
Most countries have passed laws to protect national heritage sites, with various classifications for owners.