I cheated a little here Exzim, the roundabout is at the foot of Twickenham Bridge, which funnily enough is not in Twickenham. Both ends of the bridge are in Richmond. But there was already a Richmond bridge when it was built.
I went looking for roundabouts in Putney John, but nothing appeared to fit. Picture does show the English spirit of adventure is still alive, even if the cyclist isn't likely to be much longer.
