- An identifiable natural or man-made feature that signifies the limit of a piece of property
- A significant occurrence or development that signifies a change in direction or progress
- A building or structure that holds special historical significance or distinctive aesthetic value
- The historic statue served as a landmark for the boundary of the town.
- The decision to adopt the new law was a landmark in the fight for equal rights.
- The restored 19th-century mill is a landmark due to its unique architectural style.