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Subject
- Historic sites762
- Fort Moultrie (S.C.)718
- United States--History--Civil War, 1861-1865--Battlefields707
- Conservation and restoration623
- Artillery252
- Visitors' centers93
- Aerial surveys80
- Engineering and construction79
- United States--History--Revolution, 1775-178365
- Walls54
- Historical reenactments45
- Harbors--Traffic control35
- Fort Moultrie, Battle of, S.C., 177632
- Military architecture31
- Docks27
- Battles19
- Cemeteries14
- Gunpowder14
- War memorials14
- Flags--United States13