As his ship rounded the high point off Point Loma, San Diego, in 1859, Richard Henry Dana wrote, "We were greeted by the cheering presence of a light-house." In reality, beams from San Diego's first lighthouse were repeatedly lost in cloud and fog, and all too soon came agitation for a more effective light at a lower elevation. By 1891, two new lighthouses were constructed to achieve what one could not--a major light on the low tip of Point Loma and...