Is that anything like the observation deck over Jurassic Park?
Here's a picture I made last month looking at Billionaire's Row.
It's on the 100'th and 101'st floors of 30 Hudson Yards. The outdoor portion is the highest outdoor observation deck in NYC. It is by far the best observation deck in NYC. There is just an angled glass wall that goes from the floor to about 15 feet above the deck. There is a window that is part of the floor of the overhanging deck that has a direct view of the street below.