Connected with the old town are two very ancient churches, St Quinin, and the cathedral, which have survived the many attacks of the Barbarians, and the final demolition of the town by the Count of Toulouse in the twelfth century. These churches are illustrated by Révoil, and shew in all their details a close adherence to Roman design. St Quinin is so very Roman in many of its features that it has been frequently supposed to belong to the sixth century, but from the ascertained dates of many parallel instances it is now regarded as a remarkable example of the mode in which the builders of the eleventh century copied the ornament of the Roman works they saw around them, while they at the same time added features of their own invention. Thus the caps are mainly Corinthian in design, but have some figures mixed with the acanthus leaves, in the manner of the Romance “storied” carvings, the foliage being well executed after an existing pattern, and the figures rudely cut according to the original design of the period. The plan of St Quinin is very remarkable, the apse being triangular externally, and semi-circular, or rather triapsal, internally. The vaults are of the usual pointed wagon form. The cathedral is a church with central nave and side aisles, terminated with three apses. The central one is semi-circular in the interior, but is enclosed in a square envelope on the exterior. The latter is an addition made at a period subsequent to the original construction, and may have been in connection with defence; an arrangement of which we shall find similar examples at Fréjus and elsewhere. The central nave is roofed with a pointed wagon vault, and the side aisles with truncated wagon vaults, having a long curve towards the outer wall, and a short one towards the nave, and thus acting as flying buttresses against the latter. The cloister and tower, or campanile, are noteworthy; and a very rare feature is here found in the original bishop’s throne, which is preserved in the centre of the apse, as at Torcello and other primitive churches. From historical data, it seems most probable that this cathedral existed in its present state before the destruction of the town in 1160; and as the square envelope of the apse and the vaulting are probably a restoration of a still earlier structure, it seems likely that the oldest portions belong to the previous century. After the destruction of the Gallo-Roman town, the bishop built himself a castle on the summit of the hill on which the new town was erected. The chapel of the castle served as his cathedral till the fifteenth century, when the existing church of the new town was constructed in lieu of the chapel, which was found too small for the growing population.