I went to the World Observatory in NYC last week for the first time and I would say that it's not for photographers. The reason being is you are behind glass and each of the window panels are very narrow. So with the crowds and the narrowness, I was a bit disappointed. The WTC had an outside view and it was better for photographers. I didn't have a filter to deflect reflections so the majority of the photos were a wash. I had timed my entry to the Observatory to catch the sunset but the prime location was a distant spot away from the window so I couldn't get up close to prevent reflections. In my opinion, the best location to take skyline photos in NYC is the top of the Rock. It gets you a nice view of the Empire State building and it's open space. The Empire State building is another spot but crowded. So these are the best that I took that day.