So we visited the History Center, and it was GREAT!
I saw Mr. Roger's Neighborhood. I never knew that was a Pittsburgh thing, but it was.
We spent the better part of a day there, and could have spent more time. It was that good. They focused on Pittsburgh history, as you'd expect.
I never realized how "southern" Pittsburgh is in some ways, but the museum taught me about that, and about Pittsburgh's role in US slavery. There was also a fascinating area on local glassmaking, where there were videos about how they made plate glass before the ways they do now (by floating melted glass on a pool of molten tin). I never realized that Pittsburgh had been a big glass manufacturing area (as well as steel, which I realized).