Until I happened across the site of Diana's death, I'd accepted that she died in a "tunnel" and had imagined a long, twisting and perhaps poorly lit roadway in which a chase took place. The reality is a very short, straight and shallow bridge underpass, only a few car lengths long. When I saw the plaque that commemorates the site, I thought it must be there in error and made the whole tragedy seem even stranger and more inexplicable than before.