Cornices are architectural features that project from the top of a wall, typically found at the junction of the wall and the roof. They serve both decorative and functional purposes, helping to direct rainwater away from the building's foundation. Cornices can be made from various materials, including wood, plaster, or stone, and often showcase intricate designs. In classical architecture, cornices are an important element of the Doric, Ionic, and Corinthian orders. They can also be seen in modern buildings, where they add character and style. Cornices are often used in both residential and commercial structures, enhancing their overall aesthetic appeal.