The scaffolding round the County Hall is going up another level. It must be fairly near the top.
Gangways zig zag near where a lift brings scaffolding to the top.
I could imagine the great Blondin, tightrope-walker, aerialist, and acrobat extraordinaire balancing upon the highest poles.
As nightfall falls there is still more scaffolding to erect tomorrow, when it could get even more extraordinaire.