One World Trade Centre, Lower Manhattan, New York City, New York, United States

A February 2007 estimate put the initial construction cost of One World Trade Center at about US$3 billion, or $1,150 per square foot ($12,380 per square meter). However, by April 2012 the tower's total estimated cost had risen to $3.9 billion, making it the most expensive single building in the world at the time. The tower's construction was partly funded with approximately $1 billion of insurance money recouped by Silverstein in connection with the September 11 attacks. The State of New York provided $250 million toward construction costs, and the Port Authority agreed to finance a further $1 billion through the sale of bonds. A series of bridge and tunnel toll hikes were also implemented by the Port Authority to raise funds, with a 56 percent toll increase scheduled between 2011 and 2015; however, the proceeds of these toll hikes were not ultimately used to pay for the tower's construction.
Architecture and design
Many of Daniel Libeskind's concepts from the 2002 competition were later discarded from the tower's design. One World Trade Center's final design consisted of simple symmetries and a more traditional profile, intended to bear comparison with selected elements of the contemporary New York skyline. The tower's central spire draws from precedents such as the Empire State Building and the Chrysler Building, and is also visually reminiscent of the original World Trade Center twin towers, rather than being an off-center spire intended to echo the Statue of Liberty.