marble columns at the nature. istanbul, turkey

sultanahmet mosque blue istanbul turkey hand-painted tiles adorn mosque’s interior frame hagia sophia principal mosque's popular tourist site islamic architecture dome crescent-shaped instambul istambul ahmed fountain view park anbul columns composition country wall golden details mosaic underground yerebatan cistern museum one istanbul's splendid historical buildings basilica located southwest large built byzantine named palace ere marble rising water countless seemingly like place column inverted medusa head base inside ancient serpent rock sign coumn constantie constantine constantine´s nature