The Cathedral of Bourges is another typical 13th century Gothic building which, though it is without the usual transepts, has a beautiful apse, the Ambulatories of which have unusually wide spaces between the columns, double aisles flanking the nave as well as the choir and chevet, producing a unique impression of vastness, whilst the exterior is equally effective with its five grand western portals, a long main roof unbroken by towers or spires, and a series of steeply pitched supplementary roofs above the chapels of the eastern end.
"Architecture"
Nancy R E Meugens Bell
The earlier Ambulatories were open, but in the fourteenth century they had windows looking on to the cloister-court, filled with stained glass.
"English Villages"
P. H. Ditchfield
Gothic art was still in its infancy, and the splendid grasp of the vaulting difficulties and masterly solution of its problems exemplified in so many later Ambulatories, had not as yet been reached.
"Cathedrals of Spain"
John A. (John Allyne) Gade