landmark

A prominent identifying feature of a landscape.

A fixed marker, such as a concrete block, that indicates a boundary line.

An event marking an important stage of development or a turning point in history.

A building or site with historical significance, especially one marked for preservation by a municipal or national government.

Having great import or significance.

To accord the status of a landmark to; declare to be a landmark.

A boundary-mark to a tract of land; one of the fixed objects used to designate the limits of a farm, town, or other piece of territory, as monumental stones, marked trees, or ditches.

Any specific or prominent object marking a locality or historically associated with a locality; a hill, tree, house, or other feature of a landscape that may serve as a guide; especially, some object on land by which a locality may be recognized by persons at sea.

Figuratively, a distinguishing characteristic, variation, or event; that which marks a turning-point; something that serves to distinguish a particular period of time or point in progress or transition: as, the landmarks of science or history.

A mark to designate the boundary of land; any mark or fixed object (as a marked tree, a stone, a ditch, or a heap of stones) by which the limits of a farm, a town, or other portion of territory may be known and preserved.