This footpath in the garden of the Dinh Tien Hoang Temple (fig.) in Ninh Binh, which is dedicated to the first Vietnamese emperor Dinh Bo Lin (fig.), has downward curved edges.

Besides the practical fact that water flows in the side gutters when it rains, this was not the main objective, but rather a side effect. The primary aim was that it is in feng shui believed that curved lines ward off evil spirits. In addition, it makes the person walking in the centre, normally the emperor, somewhat more elevated, while his subordinates, who walk on the sides, have to bow their in order to see where to step, thus automatically lowering their heads in the presence of the emperor.