Above Tours and Marmoutier, on the road to Vouvray, is La Roche Corbon. The cliff is pierced with windows and doors, and niches for a pigeonry. This, till comparatively recently, was a truly Troglodyte village. But well-to-do inhabitants of Tours have taken a fancy to the site and have reared pretentious villas that mask the face of the cliff, and with the advent of these rich people the humble cave-dwellers have "flitted." One singular feature remains, however, unspoiled. A mass of the cretaceous tufa has slipped bodily down to the foot of the crag, against which it leans in an inclined position. This was eviscerated and converted into two cottages, but the cottagers have been ejected, and it is now a villa residence. An acquaintance at Tours has rented it for his family as a summer seat. Some fifty or sixty years ago La Roche Corbon was "a village sculptured up the broken face of the rocks, with considerable skill, and what with creeping vines, snatches of hanging gardens, an attempt here and there at a division of tenements, by way of slight partitions cut from the surface, wreaths of blue smoke issuing out of apertures and curling up the front, and the old feudal tower, called Lanterne de la Roche Corbon, crowning the summit, the superincumbent pinnacle of excavated rock on which it stands looking as if it were ready to fall and crush the whole population beneath, this lithographed village has altogether a curiously picturesque look." But at Beaumont-la-Ronce, north of Tours, may be seen a whole street of cave habitations still occupied, wreathed with vines and traveller's joy. In the department of Maine et Loire, and in a portion of Vienne, whole villages are underground. There is often very valuable vineyard land that has to be walled round and every portion economised. What is done is this: the owner digs a quarry in the surface; this forms a sort of pit accessible on one side, the stone taken from this being employed to fence round his property. Then, for his own dwelling, he cuts out chambers in the rock under his vineyard, looking through windows and a door into the quarry hole. For a chimney he bores upwards, and then builds round the opening a square block of masonry, out of which the smoke escapes. A whole village, or rather hamlet, may therefore consist of--as far as one can see--nothing but a series of chimneys standing on the ground among the vines. Those who desire to discover the inhabitants must descend into the quarries to these rabbit warrens. In some villages the people live half above ground and half below. At St. Leger, near Loudun, is a fine mediaeval castle, with a fosse round it cut out of the rock: and this fosse is alive with people who have grubbed out houses for themselves in the rock through which the moat (which is dry) has been excavated.