I found this abandoned solarium high in the hills of the San Francisco Peninsula. It was part of the estate built and owned by W. Nylen, one of the attorneys who represented William Randolph Hearst.
Ivy had grown through the broken window panes and the whole place was in bad condition.. The entrance was blocked with a four-foot piece of plywood that was painted with the lettering: "Do Not Enter - Danger" . I had to work from the safe side of the plywood barrier. It must have been truly lovely spot when in its better years.