Landmarked

[land-mahrk] /ˈlændˌmɑrk/

noun
1.
a prominent or conspicuous object on land that serves as a guide, especially to ships at sea or to travelers on a road; a distinguishing landscape feature marking a site or location:
The post office served as a landmark for locating the street to turn down.
2.
something used to mark the boundary of land.
3.
a building or other place that is of outstanding historical, aesthetic, or cultural importance, often declared as such and given a special status (landmark designation) ordaining its preservation, by some authorizing organization.
4.
a significant or historic event, juncture, achievement, etc.:
The court decision stands as a landmark in constitutional law.
verb (used with object)
5.
to declare (a building, site, etc.) a landmark:
a movement to landmark New York’s older theaters.
/ˈlændˌmɑːk/
noun
1.
a prominent or well-known object in or feature of a particular landscape
2.
an important or unique decision, event, fact, discovery, etc
3.
a boundary marker or signpost
n.

Old English landmearc, from land (n.) + mearc (see mark (n.1)). Originally “object set up to mark the boundaries of a kingdom, estate, etc.;” general sense of “conspicuous object in a landscape” is from 1560s. Modern figurative sense of “event, etc., considered a high point in history” is from 1859.

a boundary line indicated by a stone, stake, etc. (Deut. 19:14; 27:17; Prov. 22:28; 23:10; Job 24:2). Landmarks could not be removed without incurring the severe displeasure of God.