John D. Rockefeller, financier Saul Steinberg and Blackstone’s Stephen Schwarzman all called the same unit at 740 Park Ave. their home.
Billionaire Julia Koch sells home in NYC’s most exclusive co-op building for $45M
John D. Rockefeller, financier Saul Steinberg and Blackstone's Stephen Schwarzman all called the same unit at 740 Park Ave. their home.