I mentioned the tall closure stone that was leaning 21.5 inches off the perpendicular a few days back and which had moved 1/2" in a year. Well here it is. I think you'll agree it's quite a lean for an orthostat 10' 3" tall!
The first photo shows the whole dolmen and you'll see the plumb-bob hanging inside the 'porch'. The second shows it much more clearly and the obvious lean on the closure stone to the right slightly in shade.