All three are either privately owned, or owned by the city. This means that you, with a valid PA LTCF, are permitted to carry.
Since you have that LTCF, you ARE permitted to carry either concealed or open. Your choice. (You can only open carry in Philly with an LTCF)
However, Philadelphia is well known to be an anti-gun hotspot. They are very likely to ask you to leave if you open carry. And that's the best case scenario. More likely, they'd call the cops, who will pretty much ignore your right to carry with an LTCF, and harass you to no end. They may even arrest you for some made up charge, only to release you later. There have been numerous cases of things like that. Seriously. Philly sucks.
So if you are going to carry in those places with your family, I'd suggest going concealed. Unless, of course, you are trying to bring attention to Philly's anti-gun policies. Up to you though!