arch arched windows architecture cross dome monastery sky arched ceiling glass glazing roof skylight truss frame angles arched window arches beams brown colors colours cream interior shutters structure structures Tan textures window window shutters wood wooden wooden window shutters appearance architectural Australian block building dark design elements exterior external gray grey height heritage high historic historical history masonry old ornamental ornamentation perspectives plain Rooms solid Somber sombre stonework surfaces walls windows arco bogen carve frame gate mughal sculpt silhouette stone voûte black sepia