One would be a bit surprised on how quiet the NYSE is most of the time, and don't forget a defibrillator is within a couple seconds as they are everywhere.
I never worked on the old AMEX, but I did visit colleagues that I spoke to on a daily basis. Was fun to sit in the lounge and sit at our station. So antiquated, but it was right there at Trinity and Rector, I walked by Alexander Hamilton daily, not anymore.
I should set up a non-profit and restore the old AMEX, such history.