The arches of this period are semicircular and usually highly stilted.
Projecting from the upper platform at the centre of the chord of the semicircular area is a cube of rock, ii ft.
The columns and capitals were all taken from ancient buildings, Egyptian, Roman and Byzantine, and they carry arches of different forms, semicircular, pointed and horseshoe.
In this plain the Ganale makes a semicircular sweep northward before resuming its general S.-E.
The Pointed arches rest upon pillars, possibly Norman, and above them, below the Decorated clerestory windows, is a series of semicircular arches with flamboyant tracery, a remarkable feature.