This is a stairway on my street. It used to go up to another street that runs along the top of the hill, but has long ago been walled up and blocked. Actually, there is a doorway with a large metal grate over it, with bricks walling it up behind it, so it seems it was sort of open after the initiall walling. There is another such stair way farther into the neighborhood that is in such a state that I don't even dare walk on it - full of holes, caved-in sections, and plants and trees growing out of every crevice. This one doesn't appear to be in too bad of shape, but I have not tried to investigate it thorally. The city is full of these funny little used-to-be-a-street-or-passage-but-was-blocked-for-some-unknown-reason things. Does it add to the charm? You be the judge.
