This photo was captured during a trip to New York City, my favorite city. I walked through High Line Park with my camera in hand, looked to my right and saw the reflection of the buildings opposite in this skyscraper. Only later (on the PC) did I see that one window of the building is open, at the very top. I think that's a funny detail. I also like the fact that the sky around the building is completely empty. Everything is visible in the building, which makes the overall picture quiet but still interesting to look at.