Arcānum | Paris Insolite & Secret | Histoires sur les Mystères de Paris


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The secret of an eternal whiteness

20th Feb '17

During the conception of the Basilica of Montmartre, the diocesan architect of Paris (Paul Abadie) chose to build the church with a white stone which came from the commune of Château-Landon, located in Seine-et-Marne. This choice was made due to its great qualities of hardness and resistance to erosion,  and because this stone had been used for the construction of the arch of triumph placed at the top of the Champs Elysées. This mineral was also used because it had “self-cleaning” specificities: when raindrops fall on  the stone, it emits white calcite, which indefinitely restores the whiteness of the walls. Besides, the convoys which transported the  stones to the top of the hill left so much white mineral dust behind them, that the city named this road Rue Blanche (White Street). For the same reason,  the subway station located at the beginning of the Lepic street, was also called “Blanche”!

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