A parapet is a low protective wall or barrier that is often found at the edge of a roof, balcony, or terrace. Its primary purpose is to prevent people from falling off the edge and to provide safety in elevated areas. Parapets can also serve as a decorative element in architecture, enhancing the aesthetic appeal of buildings. In addition to safety, parapets can help shield the building from wind and rain. They are commonly seen in various structures, including castles, bridges, and modern skyscrapers. Parapets can be made from different materials, such as brick, stone, or concrete, depending on the design and function.