WTC Tower 4 worker and Co Kerry native John O'Shea signs the final beam at the topping out ceremony in June
Eurotech foreman and Kerry native John O'Shea signs Tower 4's final beam
WTC Tower 4 worker John O'Shea, a Kerry native, signs his family's names on the tower's final beam
Derry native James McCusker signs his name on WTC's Tower 4's final steel beam
Kerry natives at the Tower 4 WTC site showing their county pride on a Eurotech toolbox
County rivalries are in full swing among the Tower 4 Irish workers at the World Trade Center!
WTC Tower 4 worker Miguel repping Co. Kerry
A popular spanish phrase, 'Te Amo Tres Metros Sobre el Cielo,' meaning, 'I love you three steps above heaven'
A steel column, for the Freedom Tower bears signatures of Sept. 11 victims' family members
Graffiti left by visitors to the site
Graffiti left by Michael Chertoff, the former director of Homeland Security, on a steel column on the 104th floor
Autographs cover a wall on a top floor of One World Trade Center
A drawing of a car on the 104th floor
A steel column for the Freedom Tower bears signatures of September 11 victims' family members
The name Antony is engraved into a column high above the New York skyline
A tribute in graffiti to Lilian Fredricks that a construction worker left on a steel column on the 104th floor of One World Trade Center in New York.
Ironworkers James Brady, left, and Billy Geoghan release the cables from a steel beam after connecting it on the 104th floor of One World Trade Center in New York
A construction worker signs a ceremonial steel beam at One World Trade Center.
'We remember. We rebuild. We come back stronger!' It is signed by a visitor to the site last June - President Barack Obama
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