The rose windows of both the eastern and western façades are Gothic in inception and treatment, and are unusually acceptable specimens of these supreme efforts of the French mediæval builders, the glass therein being distinctly good, though perhaps not remarkable.
The transepts are rectangular and, with the ensemble of the entire structure, were their towers completed, there would be produced, not only a unique example, but a towering effect only a degree less interesting than the perfectly proportioned pyramidal form so much admired in the perfectly developed Gothic.
The interior is equally attractive with the exterior, and, though the church is not by any means of remarkable dimensions, it presents in its appropriate disposition of detail a far more roomy and pleasing arrangement than many a larger example.
The transepts are divided into a nave and side aisles, the columns which partition them, like those of the nave proper, being cylindrical and of massive proportions, which, however, lighten as they rise to the vaulting. They are unusually symmetrical when viewed together, the capitals of the lower series being ornately carved, each of a varying design.
Above the aisles are lofty galleries. The nave chapels were added in the sixteenth and seventeenth centuries. The stained glass, like that of the rose windows, is in the nave distinctly good, particularly that of the lower range on the southerly side. The pulpit, of carved wood of the Renaissance period, is not of the importance and quality of this class of work to be seen across the Rhine border.
The former Bishop's palace, adjoining the left of the choir, is now the Palais de Justice. A few remains of a former Gothic cloister are to be remarked, surrounded by the later construction.
