UFO Sighting in Simatai Greatwall, Beijing on 2017-04-15 12:12:00 – Look like metal disc cylinder

1. went for great wall hiking. 2. didnt notice at all untill i went back to the state & check on my cellphn picture album. 3.Ufo 4.I think it was flying straight over the sky around the hill or great wall structure. 5. i didnt realise at first right after i took the picture. i was capturing the view site of the great wall while hiking. 6. none