What it was like to be as rich as Rockefeller: How a house gave shape and meaning to three generations of an iconic American family One hundred years ago America's richest man established a dynastic seat, the granite-clad Kykuit, high above the Hudson River. Though George Vanderbilt's 255-room Biltmore had recently put the American country house on the money map, John D. Rockefeller, who detested ostentation, had something simple in mind--at least...