Video: Human tower built in New York to honour rebuilding of World Trade Center – Telegraph
The 150-strong Castellers de Vilafranca team took about five minutes to get into position.
Cheers erupted when the final child, wearing a safety helmet, topped the precarious human tower.
Earlier, the team had built an eight-person high human tower, apparently setting a new Guinness World Record.
The performance is the first in a series of events being held to celebrate the rebuilding of the World Trade Center complex that was destroyed by terrorists in 2001.