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National Historic Landmarks (NHLs) are historic properties that illustrate the heritage of the United States. The over 2,600 NHLs found in the U.S. today come in many forms: historic buildings, sites, structures, objects, and districts. Each NHL represents an outstanding aspect of American history and culture. A list of NHLs by state is available here.
The NHL Committee met virtually on May 22, 2025.
On December 16, 2024, the Secretary of the Interior announced the designation of 19 new NHLs and approval of updates to 14 existing NHLs.
NHL Program Updates and Announcements
Frequently Asked Questions
NHL Program Info & Research
Find NHLs Files and Nominations
Become a National Historic Landmark
Preserving Existing NHLs
Last updated: June 9, 2025
