Thanks all. Nico, you are looking up into a tower (inside a museum) towards a skylight. The dark holes are windows from which you can look down from different galleries to an artwork at the bottom. Lydia, it is an all white building, no color at all. But since the skylight is daylight and the tower is lit from the bottom by artificial light the difference in white balance will make the bottom a greenish yellow and the top part blue. And not in a nice way so b/w really is the way to go here IMO.
Very cool. I'm not sure, of course, how much color is in the original, but perhaps this would also fit in the current challenge of the dpreview CTF challenge: Minimal Color http://www.pbase.com/ctfchallenge/c171_eligible ~Lydia
