>> and down there is a wonderful black smith building and one of the things i like about this building it has elevated roof on the section behind and ventilate and no chimneys. >> right next to it isn't there a copper smith building? >> up the block. >> fo fol sum. >> this is in fact a san francisco landmark and 1911 and as a black smith shop and so many change. a rarity. tools, manufacturers, general black smith. still used as a black smith shop. one of my favorite buildings in north beach area is the sheet metal shop and the shop -- this entire building, facade is made of sheet metal. as we get closur closer you cane