A prison, a cemetery and defunct mines are the landmarks by which people give directions.
There are few landmarks by which to find one's bearings, but a clear map soon accumulates in the mind.
Pulsars could also reveal information about the feasibility of an interstellar navigation system; their regular signals could serve as landmarks by which to triangulate a spacecraft's position.
Identifying individual buildings is essential, since in dense slums without formal roads they are the landmarks by which outbreaks can be tracked and assistance targeted.
As the Gores put it, "the ways we work, commute, communicate and learn have all been revolutionized over the past few generations," creating "a new emotional landscape with few of the guideposts and landmarks by which families used to get their bearings".
You need to drive past all of them, out to the point where the occasional scattered shrub or palm tree has long since disappeared and given way to a seemingly endless, flat horizon of sand and rock – out to the point where there are no longer any landmarks by which to measure the passing of your journey.
Perhaps the most memorable book of this genre was "Total Woman," the 1973 landmark by Marabel Morgan, which famously recommended that women greet their husbands at the door in a snug casing of Saran Wrap.
In August of 2009, for instance, a two-hundred-thousand-dollar deposit was made by the Safi Landmark Hotel, which is owned by an Afghan family that also owns an airline and other businesses that deal with the government.
POS also developed responses to permanent landmarks, but this region was also initially activated by landmarks which were subsequently better remembered (factor 2).
Nearly all of them are protected by historic landmark designation, which means that any exterior changes would have to be approved by the New York City Landmarks Preservation Commission.
