The granite and concrete staircase didnt originate in the museum, though.
As people later recounted their survival stories, the staircase was a common thread connecting so many harrowing tales.
The stairs withstood the eventual collapse of the Twin Towers.
Photo:ElmoTickleTorture
The final home is alongside the escalators at the bottom level of the 9/11 Memorial.
How Photography Changed the Way We Receive News.
Photo:Mark Kent,CC BY-SA 2.0, via Wikimedia Commons
