I was standing on balcony with my brother while he was explaining the history of the buildings when I noticed object. It was not until later going back that I actually had a true belief in what I had just seen. This may have been something else but I don't know I have photograph. This is not my first encounter myself and my daughter and friend were walking across fields taking dog for walk few years earlier and we all noticed a silver object popping in and out of a cloud. It then hovered out in clear sight for about a minute and then just excellerated at such a speed. I turned to my daughter and her friend and said to them "did you just see that" and they looked so frightened so I told them it must have been a helicopter but it certainly wasn't it made no noise it is similar to the shape of the one in the photo and it moved like nothing I have ever seen. It was as if they were watching us! I have seen other things and experienced through the years but my choice has been to ignore not through ignorance but through shame and fear. Thank you.