National Historic Landmarks (NHLs) are nationally significant historic places designated by the Secretary of the Interior
because they possess exceptional value or quality in illustrating or interpreting the heritage of the United States. Today,
just over 2,500 historic places bear this national distinction.
» GO TO NATIONAL HISTORIC LANDMARKS PAGE ON NPS.GOV
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About the National Register Web Site
administered by the Maryland State Highway Administration, supported data development for this project.