World Trade Center graffiti
The words on beams, walls and stairwells of the skyscraper that replaces the twin towers lost on Sept. 11, 2001, form the graffiti of defiance and rebirth.
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Autographs
In this Jan. 15, 2013 photo, autographs cover a wall on a top floor of One World Trade Center in New York.
People on the ground below will never see the spontaneous private thoughts high in the Manhattan sky. The graffiti will disappear as the raw basic structure is covered with drywall, ceiling panels and paint for tenants moving into the 3 million square feet of office space by 2014.
Knowing this, workers and visitors often take photographs of special bits of graffiti, so the words will live on.
Credit: AP Photo/Mark Lennihan
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