Did you know why the Sacré-Cœur Basilica remains brilliantly white, even after decades?
The secret lies in the Château-Landon stone used for its construction. This special stone, renowned for its durability, releases a white calcite when it comes into contact with water. Each rainfall acts like a natural wash, refreshing and whitening the basilica, keeping it immaculate—as if it had just been built. A true architectural miracle with every shower!
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