Look up- Secondary Forecourt entrance of the extension at Masjid Al-Haram. The mashrabiya above heavy green doors features bevilled edged glass between the shapes. What this does is it allows light to bounce between each piece creating a twinkle that changes as you walk towards/ away from the entrance. Everything has been actually designed. For example If you look at the side wall sconces you see that the base of them is gold the rear one has a black base- that's how CCTV has been concealed....