Camera Obscura also known as Giant Camera resides by the Cliff House in San Francisco. Built in 1946 and made part of the historical Playland amusement park by the beach. It moved to the Cliff House after Playland was torn down in 1972 to make room for housing.
I have never been inside this structure nor do I know if it is still in operations. But, if you go to the following links, you can get a glimpse of the live images it takes and an informational flyer.
Have a nice weekend,