Stairs to nowhere

This building directly next to my hotel has intrigued me during my stay.

It's clearly an office but I've been trying to figure out what type. I think it might be something to do with a magazine, or fashion? Anyway, I've noticed that one office has a very nice white spiral staircase.

Except that above it is a standard office with desks and no visible exit point! Maybe it's just for looks? Maybe it's for photo shoots? I wonder.