Lighthouses are tall structures built along coastlines to help guide ships safely to shore. They use bright lights and sometimes loud sounds to warn sailors of dangerous areas, like rocky shores or shallow waters. Each lighthouse has a unique light pattern, making it easier for sailors to identify their location at night or in foggy weather. These beacons have been used for centuries and are often found in picturesque locations. Many lighthouses, such as the famous Cape Hatteras Lighthouse in North Carolina, have become popular tourist attractions. They symbolize safety and hope for those at sea, standing tall against the elements.