The most revealing detail here is not something carved into the façade: Teatro Carlos Alberto has no legal heritage protection. Its name is Teatro Carlos Alberto. When you are safely stopped on the pavement, give yourself a moment to take in the building without trying to turn it into a grand historical monument.
Notice the entrance, the windows, the textures, and the ordinary street life gathered around it. A theatre’s public face is made for anticipation: people arriving, waiting, meeting, and then passing through a doorway into a shared experience. The lack of legal protection is a useful reminder that official status and personal value are different things.
You can still let this be a small pause in the city: a place identified by its theatrical name, encountered at street level, and noticed on its own terms. Take your time here, then continue along the pavement when you are ready.