John B.
Yelp
It's a bit of a tired old-looking building, and not in a pretty historic way. However, I found plenty of aesthetically pleasing and interesting stuff inside Charleston's museum. The exhibits are basically just a ring around the top floor of a building that fits on one city block (hey, I grew up on Smithsonians, I'm spoiled). They stuff a lot in there, though. From some pretty interesting stuff on colonial farming, to the obligatory Civil War section, to a set of fossils, including one of a bird double the size of an albatross.
The history of Charleston is fascinating, and while I'm no expert, the museum seemed to offer a relatively down-the-middle take on it. And it's a weird niche that contemporary Charleston lives in; at once seemingly a culturally vibrant and upscale destination city for much of the South, but one that most Americans couldn't find on a map. I for one enjoyed getting to know the city a little better.
Someone was giving a virtual tour, a sign of our times, but there were only a few other people inside, plenty of room to breathe. The option was offered to leave and return with your ticket, which I did not do, but might have under different circumstances. I would also note that you can buy tickets to one of two historic houses in combination with the ticket here, which again I did not do for lack of time, but which seems worth exploring.