H.L. Hunley Submarine Conservation Facility

The iron hull rests in a 75,000-gallon tank at the Warren Lasch Conservation Center in North Charleston — not a replica, the actual vessel. On a single night during the Civil War, the Confederate submarine H.L. Hunley became the first submarine in history to sink an enemy warship in combat, then disappeared. Raised from the ocean floor in 2000, she's still being conserved here, her encrusted hull worked by hand tools, her artifacts — including the gold coin that reportedly saved her captain's life — studied one by one. Open weekends only.