Technically it's America's First Museum, although the original location of the museum burned down many years ago. You can still see the columns of the museum on Calhoun St, I believe.
When you walk in, there's a HUGE skeleton of a whale suspended from the ceiling. Kids always seem to like that.
Alot of artifacts and historical things from old time Charleston and the US are here. There is a "Discovery Area" for kids that has alot of hands-on activities for them to entertain themselves with.
I wish the gift-store was larger and that the collection of silverware was smaller. Other than that, it's a very nice museum and one I have visited numerous times over my life.