Sunken ships are vessels that have gone underwater, often due to accidents, storms, or warfare. These ships can be found in oceans, rivers, and lakes, and they may remain intact or break apart over time. Some famous examples include the Titanic and the USS Arizona. Many sunken ships become artificial reefs, providing habitats for marine life. They can also be sites for exploration and research, attracting divers and historians. Salvage operations may recover valuable cargo or artifacts, contributing to our understanding of maritime history and the events that led to their sinking.