Pt Loma Lighthouse is located at the mouth of San Diego Bay. In contrast to the previous two entries, Pt Loma was built and opened in the same year (1855) and cost only thirty thousand in today’s dollars. It sits atop a 400-foot cliff and was the highest lighthouse in the country. That also was its downfall because of fog and clouds, and it was deactivated in 1891. A new, lower lighthouse was built, and Pt Loma fell into disrepair. In 1933 it became part of the National Park Service and was restored in 1935. Currently it operates as a museum. The first 4 photos are dated 1865, 1888, 1905 and 1917, respectively.