Oppose Well, it seems it is some large tank used to holding gas and the photo is taken from the bottom of it. Basically, the lower 2/3 of picture is reflection in the water (probably, may be other liquid). But it is pretty confusing and requires some thinking to realize what it is ... may be nice in "Guess what the picture is" competition, but not as FP --Leclerc02:16, 14 September 2006 (UTC)[reply]