FILE - In this file photo of March 26, 2012, One World Trade Center towers above the Lower Manhattan skyline and Hudson River in New York. The new World Trade Center has reached a milestone. The skyscraper being built to replace the terror-wrecked twin towers has reached 100 stories. That's just four floors short of One World Trade Center becoming the tallest building in New York City. (AP Photo/Mark Lennihan, File)
NEW YORK (AP) -- One World Trade Center is expected to claim the title of New York City's tallest skyscraper on Monday, as workers erect steel columns that will make its unfinished skeleton a little over 1,250 feet tall.
That's just high enough to peak over the roof of the observation deck on the Empire State Building.
The milestone carries an asterisk.
The tower still isn't as high as the antenna that sits on the Empire State Building.
Experts usually don't count antennas or flagpoles when measuring building height.
When complete, One World Trade will be the nation's tallest building at 1,776 feet, but that's only if you count the 408-foot-tall antenna spire that will sit on its roof.
Otherwise, it will still be No. 2, after the Willis Tower in Chicago.