Fort Fisher

Since we were already there to see the aquarium, we decided to visit Fort Fisher. This is one of the remaining batteries at the historic site. A good bit of what was once the seaward fortifications have been eroded away. There is a museum there that has an impressive display that takes you through the battle step by step with a cool light show.
The fort guarded the port of Wilmington, NC which was the last port open to Confederate blockade runners.

Here is a link to a Wikipedia entry on Fort Fisher.