If you look careful enough, you can see some Christian figures with Islamic figures together in same the picture. This is really a rare situation which makes Hagia Sophia one of most historical & religious places in the world.
How this photo was taken?
In order to fit all of these figures in the same frame from that much close point of view, i used my wide angle lens EF-S 10-22 at 10mm focal length. There were too bright and too dark areas, so I took 3 bracket shot with +-1 stops and I merged them using Photomatix software.