The three great typical buildings of this epoch are the Rhenish cathedrals of Mayence, Worms, and Spires. The first was commenced in the 10th century, and still possesses parts belonging to that age. The present edifice at Worms belongs principally to the church dedicated there in 1110. The age of the third and most important of these three cathedrals is still a matter of controversy, and one, I fear, that will not be settled without difficulty; for the church has been so frequently damaged by fire and war, and lately by ill-judged restorations, that it is not easy to ascertain what portions of it are old and what new. Still I cannot help feeling convinced that the plan, and probably a great part at least of the present structure, may belong to the original building of Conrad, commenced in 1030, and which was dedicated by his grandson Henry IV., thirty-one years afterwards. Except the eastern apse, which is as usual flanked by two round towers, the whole of the exterior of Mayence has been so completely rebuilt, that little can now be said about it. The plan presents nothing remarkable, except that it is evident, from its solidity and arrangement, that it was intended from the commencement to be a vaulted building; while of its details only one doorway remains which can with certainty be said to belong to the original foundation.[66] It is remarkable principally for the classicality of its details, and if its age is correctly ascertained (the end of the 10th century), it would go far to confirm the date usually assigned to the portal at Lorsch, namely, the late Carlovingian period. At Worms, the only part now remaining of the edifice dedicated in 1110 is the eastern end. The western apse cannot be older than the year 1200, the intermediate parts having been erected between those dates. The original plan is probably nearly unchanged, and is a fine specimen of its class. The eastern apse is a curious compromise between the two modes of finishing that were in use at that period, being square externally, and circular in the interior. Internally the vaulting throughout is simple and judicious, without any straining after effects like those which puzzled the Norman architects in the same age (see _ante_, p. 114), and the alternate clustered piers and large size of the windows give to the whole a variety and lightness not usual in churches of that date. Nothing can well be simpler or nobler than the design externally. The four circular towers and the two domes break the sky-line pleasingly, and the ornamentation throughout is good and appropriate. Among the best of its details are the pilaster-like buttresses which ornament its flanks; one of these is shown on a larger scale (Woodcut No. 702). They display the true feeling of Romanesque art: one moulding on each side running round the windows, while the central group forms a pilaster running up to the cornice.