Historic lighthouses are tall structures built along coastlines to guide ships safely to shore. They use bright lights and sometimes sound signals to warn vessels of dangerous areas, such as rocky shores or shallow waters. Many of these lighthouses have unique architectural styles and are often located in picturesque settings, making them popular tourist attractions. Some famous examples of historic lighthouses include the Cape Hatteras Lighthouse in North Carolina and the Eiffel Tower Lighthouse in France. These lighthouses not only serve a practical purpose but also represent maritime history and the evolution of navigation technology over the years.