Art as Building?

I had a work event yesterday at Chelsea Piers and as I was walking to Pier 60 I noticed the building in this picture. I have no idea what this building is (don't go to 12th Ave and 22nd Street too often) but is definitely a "show stopper".

I was debating with a co-worker of mine whether the clouds were somehow embedded into the glass or were the windows reflection that good that it made it appear as though the glass had clouds in them. Either way it was a beautiful building. Wish I could have better pictures or close ups, but like I said...I was there to WORK! :o)