Note this category includes List of National Historic Landmarks in Boston and several other lists not exactly at the state level. This permits this OpenSourceMap to show locations of all U.S. National Historic Landmarks, current and former, for which coordinates are included in the list-articles of NHLs.
This category has only the following subcategory.
The following 56 pages are in this category, out of 56 total. This list may not reflect recent changes.