In Pictures: The tallest building in America
With the addition of a 440-foot spire, One World Trade Center in New York at 1,776 feet has taken the crown away from Chicago's Willis Tower at 1,450 feet.
The sun reflects off New York's One World Trade Center as people stand in a park in Hoboken, N.J. The building, at 1,776 feet with the spire included, is now the tallest building in the United States.GARY HERSHORN/Reuters
The final piece of the One World Trade Center spire is attached to the building by iron workers in New York. The spire adds about 400 feet to the building, which is scheduled to open next year.GARY HE/Reuters
The moon rises behind the skyline of New York's Lower Manhattan and One World Trade Center.GARY HERSHORN/Reuters
Members of the media are reflected in the windows of the 100th floor observation deck in the One World Trade Center in New York. The 360-degree panorama is expected to become one of the city’s premiere tourist attractions when it is completed in 2015.LUCAS JACKSON/Reuters
Four World Trade Center, centre, stands near its more famous neighbour, One World Trade Center, left. Four World Trade Center is the first office building to open on the original 16-acre site known as Ground Zero where more than 2,700 people lost their lives.MARK LENNIHAN/The Associated Press
A U.S. flag flies in the wind as the final piece of One World Trade Center's spire is lifted to the top of the building in New York.LUCAS JACKSON/Reuters
A person stops to read names in New Jersey’s memorial to the 749 people from the state lost during the Sept. 11 terrorist attacks on the World Trade Center, as One World Trade Center looms in the distance across the Hudson River.MEL EVANS/The Associated Press
One World Trade Center, centre, rises above the National September 11 Memorial and Museum at the World Trade Center in New York. The World Financial Center is on the left, and Four World Trade Center is at right.MARK LENNIHAN/The Associated Press