Fodor's Expert Review Basilique Souterraine St-Pie X
Lourdes
Church
Lourdes celebrated the centenary of Bernadette Soubirous's visions by building the world's largest underground church, the Basilique Souterraine St-Pie X, with space for 20,000 people—more than the town's permanent population. The Basilique Supérieure (1871), tall and white, hulks nearby.
