One of my favorite buildings in Downtown Boston is the Richards Building on State Street for its rare and lavish cast-iron facade. Built in about 1859, the building was developed by Quincy A. Shaw and Gardiner H. Shaw (uncles of Robert Gould Shaw, who led the famed African American regiment that is the subject of St. Gaudens’ and Charles McKim’s Boston Common monument), merchants who then leased out commercial space in the building. The architect of the building is unknown; however, the sheet metal was supplied by E.B. Badger & Sons. The original design was a five-story, eight-bay cast iron front structure, in the Northern Italian mode of the Renaissance Revival style. The facade is only a screen attached to the front of the building. It is made of pieces of cast iron that were fabricated in Italy and bolted together in Boston. In 1889, the building was sold to Calvin A. Richards, a wealthy street railway tycoon and it is presumed that the two upper stories and corner oriels were added at that time. The building features one of a handful of extant cast-iron facades in Boston, which was restored in the 1980s.