A pediment gable is a triangular section of a wall that sits above a horizontal roofline, often found in classical architecture. It is typically formed by the sloping sides of the roof meeting at a peak, creating a distinctive triangular shape. This architectural feature is commonly seen in buildings like temples and government structures, adding a sense of grandeur and elegance. Pediment gables can be adorned with various decorative elements, such as sculptures, reliefs, or ornamental moldings. They serve both aesthetic and structural purposes, enhancing the visual appeal of a building while also providing a transition between the roof and the wall.