These ruins are right across from the main hotel in Sarajevo. They think these are from an early bazaar in old town. For now, there's not much happening.
We went to Sarajevo for Thanksgiving a couple of months ago. It was a good, if short, visit, and we took a walk around the town with the Larsons on that Friday. The museum in the top picture is of the assassination of Arch Duke Ferdinand, which started World War I.