Your comment reminded me of this picture (I hope it shows up below)>
The dark-colored four-story building in the center of the picture it the New York City home of John D. Rockefeller Senior. The picture was taken in about 1900. At the time, John Sr. was the richest man in America by a long shot.
The seven-story building behind it is the home of his son John D. Rockefeller Junior.
