I did that in June Zoe - it is VERY humbling. VERY humbling indeed. It's a somber, sad place, especially when you think of how many died there
It is also strangly quiet. Not just the people, but the traffic becomes quiet, as if everything for that one or two blocks just simply... stops. Everything goes away and it's quite eerie.
Then you walk "out" the other side of that section and you are back in noisy New York city again