HISTORY ON HAND. Top shelves in the bookcases contain various publications on vice presidents of the past, a tradition started by Joan Mondale as she formally dedicated the room as the vice-presidential library. Finished with a distinct glazed and lacquered peacock blue, this unique area on the first floor of the residence has been known over the years as the library, sitting room, or den. Number One Observatory Circle, the official home and residence of the Vice President of the United States. (Photographer: Oberto Gili). Text credit: Charles Denyer.