It wasn't the big, bad wolf who was huffing and puffing on Tuesday.
It was the 300 or so crazies who chugged up the stairs for the 31st Empire State Building Run-Up.
News4's Cat Greenleaf was among those who accepted the challenge of running up 86 flights of stairs, 1,576 steps in all.
How did Cat fare? Well, you'll just have to watch the video to the left to find out.