Hmmm... tilted building... I do not know, I am often correcting verticals, but somehow, in this case, it does not bother me that much. Perhaps because there are so many diagonals and geometric and perspective distortions in the image that it blends in better?
On the other hand, if corrected, as below, I am losing a bit at the edges, and it makes the image a bit cramped, without room to breathe. What say you?