They moved the tourists entrance slightly to the side, but we'll pretend this is where we entered. Straight ahead is the entrance many people will take, the one with the mosaic with Constantine the Great and Justinian. The complex, like other mosques, has been surrounded by many facility buildings, like a lot of "türbeler", burial places for the higher echelons. They were closed this time around. You can here get some indication of the size of the central building.