As a child our parents took us to NYC by train for various events. I was always enthralled by the train room’s latticework structure. Like my erector set at home!
As an adult, architect and PRR historian, I continue to be amazed at the construction of the building for its time. Hanging all that stonework on the iron frame.
Having been to Rome and seeing how the ancients built vast spaces, NYPenn was a masterpiece of early 20th century structural design.