A pier is a structure built over water, often extending from the shore into a lake, river, or ocean. It serves various purposes, such as providing a place for boats to dock, allowing people to fish, or offering a scenic spot for walking and enjoying the view. Piers can be made of wood, concrete, or metal, and they often have railings and benches for visitors. Many piers are popular tourist attractions, featuring shops, restaurants, and entertainment options. For example, the famous Santa Monica Pier in California is known for its amusement park, while the Brighton Pier in England offers a lively atmosphere with arcades and food stalls.