At the dead end of Northampton Grove is a gated courtyard with a building in
the middle, and the building has a horizontal girder sticking out about
three metres off the ground. The girder runs over the courtyard before
joining at an oblique angle with anorther girder running over the gateway.
You can see it he
http://maps.live.com/default.aspx?v=...9262&encType=1
The buiding is the one in the centre, seemingly at 45 degrees to everything
else in the picture, and the girder is the black line running diagonally
towards the bottom left,until it joins the gateway girder running left to
right. You can see the shadows of the girder and the gateway girder a little
above the girders.

So what's that about?