We travelled to Lourdes to check out what all the fuss was about. It was a very strange experience. Lourdes has more hotels than any other city in France other than Paris, hosts 6 million visitors each year and has more than 200 souvenir shops selling virgin Mary shaped water bottles, prayer candles, church robes, prayer beads, etc etc. The TGV even goes to Lourdes.

Pilgrims walking back along the Rue de Grotto

The church built above the grotto where young Bernadette saw the visions of the virgin Mary.

The River (presumably from where the holy water that everyone bottles comes from) right next to "the grotto".
Lourdes is a very strange place which we both found to be more Disney-land than holy-land. We couldn't get out of there quick enough.