Shot at the Grande Mosquée Hassan II in Casablanca, Morocco.
This mosque was big. They said the minaret of this mosque was the tallest religious architecture in the world. Although I didn't know whether it was true or not, the structure of the corridor was accomplished without any relation to its largeness.
I saw many arches on the other side of the passageway. And shadows of pillars fell on the ground. The scenery consisted of the straight lines and curves. When I watched it, I felt as if I wandered off into the world of geometry.