We've just returned from a trip to San Fran and I was intrigued by an enormous crane like structure on the hills over looking San Fran. It was very visible when we were walking around Castro, then from Castro to Haight, it seemed very close.
I think it was near to the red ribbon on the hill, but I know distances can be deceiving.
Anyone know what it is? I did manage to get a photo of it through the fog if people need a visual clue as to what I am talking about.
Thanks in advance.