Lighthouses are interesting buildings that have helped sailors for a long time . They act as safe signals , signs of hope , and amazing examples of engineering . Here 's a closer look at what they do and their history : Purpose of a Lighthouse Navigation Aid : Lighthouses help ships move safely through coastal areas by showing where there are dangers like rocky areas , shallow waters , and steep cliffs . Positioning & Guidance: They help sailors figure out where they are and lead them towards safe harbors . VisualSignals: Each lighthouse has a special light pattern or color th...
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