https://www.google.co.uk/maps/@51.5143263,-0.0696141,3a,75y,41.12h,112.85t/data=!3m6!1e1!3m4!1sbQbVCRcdBPnCOgXHIDxUnA!2e0!7i13312!8i6656!6m1!1e1

okay I think I can see what we are looking at here...

"those with half a brain" replies MI5 ONLINE...