Often nicknamed “Schrödinger’s roundabout,” Dublin’s Walkinstown Roundabout features three unmarked lanes and five exits, making it a uniquely confusing interse

Often nicknamed “Schrödinger’s roundabout,” Dublin’s Walkinstown Roundabout features three unmarked lanes and five exits, making it a uniquely confusing intersection. To add to the challenge, traffic in Ireland drives on the left side of the road. Walkinstown Roundabout was built in the 1960s as Du…