"The Cathedral" as it's known to some for its dramatic light quality (and perhaps for the presence of several pianos) or Building 6 as it's known by the City of SF sits on the shore of San Francisco Bay at the end of Pier 70 in the Dogpatch.

The 512-foot long building constructed on tidal land was used as a general outfitting storage facility for Piers 69 and 70. This building, along with the many others at Pier 70, have been instrumental to SF's industry and have helped produce a significant amount of mining machinery, locomotive equipment, iron, steel, as well as ship building and repair.