Even on a calm day, the tower generally sways about 6 inches (15 centimeters) in both directions. For comparison, the Empire State Building is supposed to move about an inch and change even in the face of 100 mile-per-hour (160 kilometer-per-hour) winds.

Can you feel the Empire State Building move?

"The Empire State Building does not sway... it gives. With a wind of 110 miles per hour, the Building gives 1.48 inches. Movement off center is never greater than one quarter inch, thus measurable movement is only one half inch, one quarter inch on either side. "

Can you feel skyscrapers sway?

Believe it or not, it's normal for skyscrapers to sway. If you were near the top of the world's tallest skyscraper — the Burj Khalifa in Dubai, which has 163 floors — you would feel the building sway about two metres! ... But builders have to be sure that super-strong winds don't topple a skyscraper.