I bought the New York city pass
50€
40 dollars
We go up to the 102nd floor + museum included. We went up at sunset for almost $100, the views were impressive, I recommend if you buy that ticket go directly to the 102nd floor, not to waste time on the other floors.
47 dollars
It cost me less than 50 euros on Getyourguide. I think it was the lowest height.
There is one at 78, which is at the top of the building, and another at 60, which is below.
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