If you watched tonight's NCIS ("One Last Score"), you saw the interior and grounds of Greystone Mansion during the last 15 minutes of the show. Gibbs on the staircase! JoBeth Williams--playing an amalgam of Leona Helmsley and Bernie Madoff-- by the fire in the living room, aka the Old House drawing room!
Nice closeups of the restored Minstrel Gallery (living room balcony), too.
I've never seen the house so totally empty; the explanation in the story was that the agency had taken possession of all its contents when the owner was convicted.