I recently found myself in a discussion about outdoor chess tables in Pittsburgh. We went online to look for a list, but all we found was https://pittsburghchessclub.org/pittsburgh-outdoor-chess-tables/ . That list seems woefully incomplete. One instance I know of that is missing is the tables in East Liberty at Penn and Highland.
Know of any others?
There were ones near the Children's Museum, in the commons next to the big red corporate logo-y looking sculpture. But they were removed either last summer or the summer before. AFAIK, they won't be returning.
I have vague memories of seeing chess tables somewhere in the Allegheny Commons, maybe/probably the ones you're describing.
I'm going to be on the northside this afternoon. If I get there early enough, I may take a look around and see if any remain.