We decided to spend our last day in the area in downtown Columbia. When we arrived at the center of town, we found the main street blocked off for a street market/food truck rodeo. It was much too hot to leave Rumple in the car, so we joined the hundreds of people and dogs and strolled along to see what was going on. Since Rumple is a nervous mutt, we had never tried anything like this before, but he did well – quietly socializing with the other dogs and the occasional friendly person.
We had an excellent food truck lunch and then strolled to the end of the street where we walked around the grounds of the State Legislature – an impressive building. Tours are offered, but we decided that the hassle of parking Rumple was not worth it. 
There were lots of commemorative plaques and statues on the grounds – many of the relevant to a revolutionary war book that Chuck is currently reading.
The camelias were in full bloom.
We strolled down Gervais, a street with many stores and restaurants.
We also stopped at a historic church to stroll through the graveyard. This touching tombstone documents that this family lost 4 children under the age of 5 on 4 separate occasions (i.e. not due to a single epidemic or other event). I always remember that the “good old days” were not so good before we had modern medicine and nutrition.
With the afternoon cooling enough to leave Rumple in the car, we ended out visit with the SC State Museum, which is a combination natural history and industrial museum. We were not able to see everything, but it was a fascinating museum with exhibits on (e.g.) the land transportation industry, weaving, shrimping, sharks, SC habitats, mining, optical illusions … It really had a large selection of topics, all well done (although some of the signage was difficult to read).
We took advantage of the warm evening to eat dinner outside for the first time on this trip.