Walls are vertical structures that enclose or divide spaces. They can be made from various materials like brick, wood, or drywall. Walls provide privacy and security in homes, offices, and other buildings. They also help to keep out noise and weather, making indoor environments more comfortable. In addition to their practical uses, walls can be a canvas for creativity. People often decorate them with paint, posters, or artwork to express their personality and style. Some walls even tell stories, like those covered in graffiti or murals, showcasing the culture and history of a place.