I was on holiday in Florence and late morning I took a photo of the River Arno which flows through the city. I wasn`t taking any notice of what was happening in the sky. On my return to England I transfered my photos onto my computer and printed the one of the River Arno. I wassurprised to see that it included a clearly observable `thing` in the sky.I enlarged the photo and it appears to be a picture of a UFO. All who have seen it says it cannot be a picture of a balloon, a helicopter or a fixed winged aircraft. Attatched are three photos, the first is the one on my camera, the other two are enlargements of this. I hope this may be of some interest to you - perhaps I am just wasting your time!