A pier is a structure built over water, often extending from the shore into a lake, river, or ocean. It is typically made of wood or concrete and serves various purposes, such as providing a place for boats to dock or allowing people to fish and enjoy the view. Many piers are popular spots for tourists and locals alike, offering recreational activities and beautiful scenery. In addition to their practical uses, piers can also be home to restaurants, shops, and entertainment venues. Some famous piers, like the Santa Monica Pier in California, feature amusement parks and vibrant nightlife, making them exciting destinations for families and visitors.