It is routinely listed as being up to 139 feet (42.37 meters) taller than the Empire State Building, thanks to the antenna-like mast that sits on its roof, even though the average person, looking at the two buildings side by side, would probably judge the New York skyscraper to be taller.

1,776′, 1,792′ to tip
One World Trade Center/Height

The core is made of ultra-high-strength concrete, at 14,000psi the strongest ever poured in New York. “It’s much stronger than any rock you could find,” says Rahimian.

1,550′
Central Park Tower/Height

One WTC is the tallest building in the United States, the tallest building in the Western Hemisphere, and the sixth-tallest in the world….

2,717′, 2,722′ to tip
Burj Khalifa/Height

Without the 408-foot broadcast antenna and spire, the Freedom Tower would be cut to 1,368 feet from its symbolic height in feet of 1776, the year America declared independence.

The 104-story skyscraper is located in the northwest corner of the 6.5 acres it occupied the entire World Trade Center, on the site where stood the building 6 of the first complex. To the west is surrounded by West Street, on the north by Vesey Street, south on Fulton Street and east by Washington Stree.

The central spire of the tower is based on precedent as the Empire State Building or Chrysler, and also visually evokes the North Tower of the World Trade Center original, rather than be a needle offset is to echo the Statue of Liberty.

Without the antenna, One World Trade Center would be 1,368 feet (417 m) tall, making it the third-tallest building in the United States, behind the Willis Tower and Trump International Hotel & Tower, both located in Chicago.

https://www.youtube.com/watch?v=msFy1h93Aak