The Basilica of St. Pius X, located in Lourdes, France, is a significant Roman Catholic church dedicated to Pope Pius X. Built in 1958, it was designed to accommodate large crowds of pilgrims visiting the famous Lourdes Sanctuary, known for its healing waters and religious significance. This modern basilica features a striking architectural style, with a vast, open interior that can hold up to 25,000 people. Its design includes a large altar and numerous chapels, allowing for various religious services and ceremonies, making it an important site for worship and reflection for visitors from around the world.