One of the beautiful privileges of living in a city like New York is that you can just go for a stroll around town and encounter pieces of art that could plausibly belong in museums. My favorite such area of the city is the Rockefeller Plaza. Imagine yourself as John D. Rockefeller in 1930, one of the most capitalist capitalists to ever have been capitalized. The economy is tumbling into a recession and then a depression, jeopardizing your plan for a new metropolitan opera house — how Europ...