What is a Landmark? "A building that has special historical, cultural, or aesthetic value to the City of New York, state or nation, is an important part of the City's heritage."
Find current designation reports that detail the historical, architectural, and cultural significance of every individual landmark or historic district approved by the Landmarks Preservation Commission.
Check out this list of links to organizations working to protect landmarks in NYC. Many local organizations including historical societies and cultural centers are listed.