New York City is a very popular city to shoot for Landscape Photographers because it is a place where great man made objects intertwine with nature in a curious sometimes strident dichotomy of existence. This makes for stark contrasts and rich texture, which always makes great art and photography.
The New York City Skyline is painted with beautiful man made scenery. The night comes alive with views from the Empire State Building to the Manhattan Bridge. The NYC Skyline is alive with lighted architecture from one of the greatest cities on earth.
Landscape Photography is a sub-genre of Nature Photography and in most cases the subject of a landscape photography composition is a nature scene void of man and his affects on nature. If the photographer wishes to include man made influences such as a road or house surrounded by nature this would still be considered a landscape photograph.