I’ve been there, i mean in the World Trade Center tower, and it was not much time ago, on december 2000 , it was so huge and impressive you’d not even take a photo of it from the base and when on top the view was magnificent. of course it’s a symbol of NYC and the US but even wider, but that’s not the point: a symbol is made of steel and glass and could be rebuilt, not the same thing for the lives of people who were there.