The seven-sided apsis with ambulatory, on which open out seven pentagonal radiating chapels.
The most striking features of the interior are its great height, the few points of support, and the simple character of the latter.
The Great Nave
(photo opposite)
The great nave, which is about 48 feet wide, is nearly 140 feet high, and is the second highest Gothic vault in France (that of the choir of Beauvais Cathedral is about 156 feet high).
Few edifices exist in which the solid parts have been so reduced in favour of the spaces.