Can you guess what's behind the caged in structure? Okay, I'll tell you. The giant cage is a multi-tiered completely enclosed driving range for golfers. It's part of a sports complex along the Hudson River called Chelsea Piers. You can see part of the rest of the complex in the blue white and red building to the left of the cage. I guess people in Manhattan are serious about their golfing. I've never been golfing there, but they do have a nice ice skating rink. Enjoy your day!