Aya Sofia, what pictures!...;) been there, it's...oh...5-6 stories high or so. Great mosaics, great big 'posters' with arabic writing on them. And the Blue mosque is just across the street..;) 
you've got it going there..

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)