After San Francisco's 1906 Earthquake and Fire over 5,600 relief cottages were constructed for the refugees. Some still survive today. (Outside Lands San Francisco Podcast Apr 18, 2013)
From 1955 to 1966 a futuristic aerial cable car traversed Sutro Baths' cove from the Cliff House to Point Lobos. From all accounts, it wasn't as fun as it sounds. (Outside Lands San Francisco Podcast Feb 14, 2013)