One World Trade Center, New York
ZT: On May 10, 2013, the final component of the skyscraper's spire was installed, making One World Trade Center the tallest building in the Western
Hemisphere and the fourth-tallest skyscraper in the world by pinnacle height. Its spire reaches a symbolic height of 1,776 feet (541 m) in reference to
the year of the United States Declaration of Independence.     
http://en.wikipedia.org/wiki/One_World_Trade_Center