Unfinished History
In the mid-1970s the San Francisco Redevelopment Agency stopped the wholesale destruction of venerable Victorian buildings. Instead, they picked them up and moved them around the neighborhood. One well-known example is the building that housed Jimbo's Bop City on Post Street which was moved to its current location on Fillmore near Sutter, housing Marcus Books.
In 1976-1977 Dave Glass took these remarkable photos of the Victorians on the move.