Creste, in Architecture, an ornamental finishing, either in stone, or of tiles or metal, running along the top of a wall or the ridge of a roof. Such crestings were adopted by the Romanesque architects from the East, but the designs were soon made after their own style. Elaborate ornaments of this kind were frequently used in Gothic buildings. In modern times cast-iron has been greatly used for such ornaments, many roofs being covered with gilded iron rails or crests.