A tourist in New York City with photo camera. View from One World Observatory. Roofs and skyscraper
.......Following the destruction of the original World Trade Center, there was 
debate regarding the future of the World Trade Center site. There were 
proposals for its reconstruction almost immediately, and by 2002, the Lower Manhattan Development Corporation had organized a competition to determine how to use the site. The proposals were part of a larger plan to memorialize the September 11 attacks and rebuild the complex.
 When the public rejected the first round of designs, a second, more 
open competition took place in December 2002, in which a design by 
Daniel Libeskind was selected as the winner. This design went through 
many revisions, mainly because of disagreements with developer Larry 
Silverstein, who held the lease to the World Trade Center site at that 
time
...........One World Trade Center's steel structure topped out at the nominal 
104th floor, with a total height of 1,368 feet (417 m), in August 2012. The tower's antenna was shipped to New York in November 2012; the first section of the antenna was hoisted to the top of the tower on December 12, 2012 and was installed on January 15, 2013.
 By March 2013, two sections of the antenna had been installed. The 
spire's completion was scheduled for April 29, 2013, but bad weather 
delayed the delivery of the final pieces.
 On May 10, 2013, the final piece of the spire was lifted to the top of 
One World Trade Center, bringing the tower to its full height of 1,776 
feet (541 m), and making it the fourth-tallest building in the world, as well as the tallest in the city, surpassing the 1,454-foot (443 m) Empire State Building.
 In subsequent months, the exterior elevator shaft was removed; the 
podium glass, interior decorations, and other finishings were being 
installed; and installation of concrete flooring and steel fittings was 
completed.
.....On November 12, 2013, the Height Committee of the Chicago-based Council on Tall Buildings and Urban Habitat (CTBUH) made the controversial announcement that One World Trade Center was the tallest building in the United States
 at 1,776 feet, declaring that the mast on top of the building is a 
spire since it is a permanent part of the building's architecture. By the same reasoning, the building was also the tallest in the Western Hemisphere
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