NEW YORK -- When it comes to New York's skyscrapers, who's king of the hill and top of the heap?
For now, it's the Empire State Building.
But all that changes Monday, when One World Trade Center – being built to replace the twin towers destroyed on 9/11 – gets steel columns to make its unfinished framework a little higher than the Empire State's 1,250-foot observation deck.
Of course, if you count the Empire State's needle-like antenna, it's actually 1,454 feet, but many purists don't include such add-ons.
Here's a list of New York's tallest skyscrapers through the years: