The choir contains six bays, and the nave eight bays.
When the exterior is examined, it is found to present at a glance a general history of the structure, and the changes which have taken place in it. The layers and masses of the different coloured stones which have been used in the edifice at different times tell their own tale.
Fig. 224.—Kirkwall Cathedral. The Nave, looking West.
Fig. 225.—Kirkwall Cathedral. Ground Plan.