e/Survivors' Staircase

Information
has gloss	eng: The Survivors Staircase is the last visible structure above ground level at the World Trade Center site. It was originally two outdoor flights of granite-clad stairs and an escalator that connected Vesey Street to the World Trade Centers Austin J. Tobin Plaza. During the September 11, 2001, attacks, the stairs served as an escape route for hundreds of evacuees from 5 World Trade Center, a 7-floor building adjacent to the 110-story towers.
lexicalization	eng: Survivors' Staircase
instance of	(noun) a flight of stairs or a flight of steps stairs, steps