Monument
Part of speech: noun
Definition: A structure built for commemorative or symbolic reasons, or as a memorial; a commemoration. An important site owned by the community as a whole. An exceptionally or prideful achievement. An important burial vault or tomb. A legal document. A surveying reference point marked by a permanently fixed marker (a survey monument).
Landmark
Part of speech: verb
Definition: To officially designate a site or building as a landmark.
Part of speech: noun
Definition: a recognizable natural or man-made feature used for navigationa notable building or place with historical, cultural, or geographical significancea major or important item, denoting a change of direction or marking a beginning or an end