But few towns, merely as towns, can be better worth visiting. In the first place, the volcanic formation of the ground on which it stands is not only singular in the extreme, so as to be interesting to the geologist, but it is so picturesque as to be equally gratifying to the general tourist. Within a narrow valley there stand several rocks, rising up from the ground with absolute abruptness. Round two of these the town clusters, and a third stands but a mile distant, forming the centre of a faubourg, or suburb. These rocks appear to be, and I believe are, the harder particles of volcanic matter, which have not been carried away through successive ages by the joint agency of water and air. When the tide of lava ran down between the hills the surface left was no doubt on a level with the heads of these rocks; but here and there the deposit became harder than elsewhere, and these harder points have remained, lifting up their steep heads in a line through the valley. The highest of these is called the Rocher de Corneille. Round this and up its steep sides the town stands. On its highest summit there was an old castle; and there now is, or will be before these pages are printed, a colossal figure in bronze of the Virgin Mary, made from the cannon taken at Sebastopol. Half-way down the hill the cathedral is built, a singularly gloomy edifice,--Romanesque, as it is called, in its style, but extremely similar in its mode of architecture to what we know of Byzantine structures. But there has been no surface on the rock side large enough to form a resting-place for the church, which has therefore been built out on huge supporting piles, which form a porch below the west front; so that the approach is by numerous steps laid along the side of the wall below the church, forming a wondrous flight of stairs. Let all men who may find themselves stopping at Le Puy visit the top of these stairs at the time of the setting sun, and look down from thence through the framework of the porch on the town beneath, and at the hill-side beyond. Behind the church is the seminary of the priests, with its beautiful walks stretching round the Rocher de Corneille, and overlooking the town and valley below. Next to this rock, and within a quarter of a mile of it, is the second peak, called the Rock of the Needle. It rises narrow, sharp, and abrupt from the valley, allowing of no buildings on its sides. But on its very point has been erected a church sacred to St. Michael, that lover of rock summits, accessible by stairs cut from the stone. This, perhaps--this rock, I mean--is the most wonderful of the wonders which Nature has formed at Le Puy.