• Jamestown exploration trenches of 1955 from the air. Landmarks are the “old cypress” in the river, upper left, the tercentenary monument, and the standing ruin of the 18th-century Ambler house
    Jamestown exploration trenches of 1955 from the air. Landmarks are the “old cypress” in the river, upper left, the tercentenary monument, and the standing ruin of the 18th-century Ambler house
  • WordNet 3.6
    • n landmark an anatomical structure used as a point of origin in locating other anatomical structures (as in surgery) or as point from which measurements can be taken
    • n landmark a mark showing the boundary of a piece of land
    • n landmark an event marking a unique or important historical change of course or one on which important developments depend "the agreement was a watershed in the history of both nations"
    • n landmark the position of a prominent or well-known object in a particular landscape "the church steeple provided a convenient landmark"
    • ***
Webster's Revised Unabridged Dictionary
    • Landmark 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.
    • Landmark A structure that has special significance, such as a building with historical associations;
    • Landmark An event or accomplishment of great significance; as, Brown v. Board of Education was a landmark of the civil rights movement. Also used attributively, as a landmark court decision.
    • Landmark Any conspicuous object on land that serves as a guide; some prominent object, as a hill or steeple.
    • ***
Century Dictionary and Cyclopedia
    • n 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.
    • n landmark 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.
    • n landmark 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.
    • ***
Chambers's Twentieth Century Dictionary
    • Landmark anything serving to mark the boundaries of land: any object on land that serves as a guide to seamen: any distinguishing characteristic
    • ***


  • Edmund Burke
    “Great men are the guideposts and landmarks in the state.”
  • Edward G. Bulwer-Lytton
    “Writers are the main landmarks of the past.”


Webster's Revised Unabridged Dictionary
AS. landmearc,. See Land, and Mark a sign
Chambers's Twentieth Century Dictionary
A.S. land; Dut., Ger. land.


In literature:

Fixing our eyes upon this landmark we watched it with bated breath.
"A Trip to Venus" by John Munro
Hellenism was such a landmark in antiquity, the Renaissance in the Middle Ages.
"The Development of the Feeling for Nature in the Middle Ages and Modern Times" by Alfred Biese
There is the landmark.
"Fields of Victory" by Mrs. Humphry Ward
In 1904 the California Historic Landmarks League (Inc.) undertook the preservation of San Antonio, but little has yet been accomplished.
"The Old Franciscan Missions Of California" by George Wharton James
There are three tall pines growing a short distance from the oak and that'll make a good landmark if we walk about.
"Boy Scouts in Southern Waters" by G. Harvey Ralphson
It was a rounded dome, covered with timber and visible as a landmark from the surrounding country.
"The Mysterious Rider" by Zane Grey
Contacts between different civilizations have often in the past proved to be landmarks in human progress.
"The Problem of China" by Bertrand Russell
Everything was changing so, just in a little while; you could not go by the old landmarks any more.
"V. V.'s Eyes" by Henry Sydnor Harrison
That the political landmarks in Ireland have in the last few years shifted is obvious to the most superficial observer.
"Ireland and the Home Rule Movement" by Michael F. J. McDonnell
To the left Claremont, seated above its terraces, made an imposing landmark.
"Lippincott's Magazine of Popular Literature and Science, Vol. XII. No. 30. September, 1873" by Various
It is like raising a whirlwind of sand to blind the eyes that are looking for landmarks.
"Lady Byron Vindicated" by Harriet Beecher Stowe
Keith somehow felt as if he were turning his back on a landmark.
"Gordon Keith" by Thomas Nelson Page
That's the worst of a fog; landmarks will keep on walking about.
"Punch, or the London Charivari, Vol. 152, January 10, 1917" by Various
I daresay you could give me some landmarks that would help us.
"The Lure of the North" by Harold Bindloss
Frank thought, however, we merely hadn't gone far enough to find your landmarks.
"The Radio Boys on the Mexican Border" by Gerald Breckenridge
Any way I looked I could see no break, no landmark, no trend of the land which could offer any sort of guidance.
"The Way of a Man" by Emerson Hough
Septimus, unconscious of this landmark in their curious wedded life, passed tranquil though muddled days in his room at the Hotel Godet.
"Septimus" by William J. Locke
Noting carefully a certain small thicket as landmark, we stooped and moved as fast as we could down to that point of vantage.
"African Camp Fires" by Stewart Edward White
Then Ashe intently surveyed the surrounding country, seeking a landmark.
"The Time Traders" by Andre Norton
Forest-clad heights upreared here and there, but no landmark that she could place and use for a guide.
"North of Fifty-Three" by Bertrand W. Sinclair

In poetry:

The landmark of the past is gone,
Its site is overgrown;
A mansion overlooks the lawn
Where history is traced upon
A parapet of stone.
"The Charter Oak" by Hattie Howard
My weary eye is so wont to gaze,
To turn its look it is slow in learning;
No other landmark it seeks, nor strays,
Beneath the brow sorely burning.
"Synnove's Song" by Bjornstjerne Bjornson
Their eyes on week-days sought the church,
    Their surest landmark, and the guide
That led them in from far at sea,
    Until they anchored safe beside
"On Star Island" by Sarah Orne Jewett
She loves no landmark now, no singular tree,
And keeps no tryst with memory, none with hope.
Some cove r life to lose it; some agree
With Christ at last, like dew the sun draws up.
"The Blind Tramp" by Lilian Bowes Lyon
Leckhampton chimney has fallen down
The birds of Crickley have cried it, it is known in the town,
The cliffs have changed, what will come next to that line
Watcher of West England, now that landmark has fallen
"Leckhampton Chimney has fallen down" by Ivor Gurney
What man would live coffined with brick and stone,
Imprisoned from the healing touch of air,
And cramped with selfish landmarks everywhere,
When all before him stretches, furrowless and lone,
The unmapped prairie none can fence or own?
"The Pioneer" by James Russell Lowell

In news:

It was designated as a National Historic Landmark in 1968 for good reason.
Stonestreet Statesville Record & Landmark Published: November 17, 2012.
City crews look at plans to use $414,000 to restore landmark house.
As the clock wound down on 2011, the gears turned on a deal to add a restaurant to Le Petit Theatre du Vieux Carre and reopen the landmark theater.
Over the weekend, pro-democracy activist and Nobel Peace Prize winner Aung San Suu Kyi was elected to Myanmar's parliament in a landmark vote.
DERRY — Loyal customers will have only a few more days to shop at one of the area's retail landmarks.
The Caribbean Motel, first opened in 1956, is a doo-wop landmark in Wildwood Crest.
With downtown Jackson's Landmark Center sunk as the future home of Mississippi Department of Revenue, a state-owned parcel north of Smith-Wills Stadium on Lakeland Drive could be atop the list of new options.
Hannah Kramer has been appointed sales and catering manager of La Colombe d'Or, one of the world's smallest luxury hotels and a landmark in Houston's Montrose neighborhood.
Renovations could begin as soon as next year on the old Kenner High School, a landmark dormant and deteriorating since 1996 but now envisioned as the new home of several municipal offices.
Adam Houston Statesville Record & Landmark Published: November 16, 2012.
Longhi's in Lahaina has been a landmark on Front Street for decades.
Bushwick brewery is new city landmark.
A bird comes in to land atop one of the domes of the landmark Taj Mahal as Venus, top left, begins to pass in front of the sun, as visible from Agra, India, June 6, 2012.
Ship Equip , a maritime VSAT communications provider, announced an important landmark of 1,000 operational VSAT systems.

In science:

In our opinion, these Destinations are the key issues, or landmarks, of the theory being reviewed.
Foundations of Black Hole Accretion Disk Theory
A landmark paper [110] considered the case of (warped) closed and open string reheating.
Towards an Observational Appraisal of String Cosmology
It is also often very useful to define complexes with the vertices restricted to a small set of landmark points; the weak witness complex is perhaps the best example of such a simplicial complex .
Persistent homology for metric measure spaces, and robust statistics for hypothesis testing and confidence intervals
Lewis [GL] in a landmark paper showed that every Banach space with an unconditional basis (or even LUST) has the GL–property. W. B.
Some Questions Arising from the Homogeneous Banach Space Problem
As the EHLQ paper pointed out in its conclusions more than a decade ago, there is no specific landmark in sight beyon d the 1 TeV electroweak scale.
Summary of the Very Large Hadron Collider Physics and Detector Subgroup
Another landmark analysis has come from ALEPH, in the introduction of the “amplitude method” for the interpretation of Bs mixing data 46 .
CP and B Physics: Progress and Prospects
Each circled state is a landmark state, and the heavy lines show the boundaries of the Voronoi cells.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
By combining these, the agent can build a list for each state s of the current landmark and the landmarks of the neighboring cells.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
Note that while terms (t1) and (t3) can be exact estimates, term (t2) is computed using the landmark subtasks as subroutines.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
This means that the corresponding path must pass through the intermediate landmark states rather than going directly to the goal landmark.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
GotoGoalLmk, go to the landmark nearest to the goal location.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
The termination for the predicate is true if the agent reaches the landmark nearest to the goal.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
The termination predicate for this is true if either (a) the agent reaches landmark l or (b) the agent is outside of the region defined by the Voronoi cell for l and the neighboring Voronoi cells, N (l).
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
C (GotoGoalLmk(gl), s, M axGotoLmk(l)) the cost of getting from landmark l to the landmark gl nearest the goal.
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition
Note that this MAXQ decomposition stores some information twice—specifically, the cost of getting from the goal landmark gl to the goal is stored both as C (Root, s, GotoGoalLmk(gl)) and as C (GotoGoal(g), s, a) + V (a, s).
Hierarchical Reinforcement Learning with the MAXQ Value Function Decomposition