The lighthouses of the United States are important structures that guide ships safely along the coastlines and through dangerous waters. Built primarily in the 18th and 19th centuries, these towers often feature bright lights and distinctive designs to help sailors identify their location. Many lighthouses are located in scenic areas, making them popular tourist attractions. There are over 1,400 lighthouses in the United States, with notable examples including the Cape Hatteras Lighthouse in North Carolina and the Point Reyes Lighthouse in California. Some lighthouses are still operational, while others have been preserved as historical sites, showcasing the maritime heritage of the nation.