A land mark can be refered to as a conclussion or the end of a regeam of any thing it might be a counry ,a person or a situation that might be occurring in the world or country.
In my own understanding a landmark of America can be termed as the END of America but with this no one can exactly predict how the end results of America will be but according to me since America is prograssing in it's scince and technology if it uses it in the right way it's land mark is likelly to be a progress.
However America is is so much engaged in wars and conflicts between several countries that's to say Iraq, South Corea amang others and so with this situation Aerica is likely to fall into the traps of its enemies in case it relaxes agood example is the blasting of the pentagon towers by Bin laden terrorists and some other threates that have been occurring which indicates that soo many threats are saroudig America so if it relaxes, it land mark is likely to be a serious war attarck that can even leed into the third world war.
yes
Mount Rushmore is a national LANDMARK of the United State of America.
Mt. Rushmore
In North America Mount McKinley will do.
You need to specify which landmark you are referring to if you want to make it possible to answer your question.
in the tropics of America
Yes it is a landmark, a natural landmark.
It was a landmark victory.The Tower of London is a landmark.
Emerald Mound site
landmark
The Biltmore Estate was deemed a National Historic Landmark in 1964. It is a private house in North Carolina and and a major tourist attraction as one of the top rated buildings in America.
The Landmark is Disney Land