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Notre-Dame-de-l'Assomption Cathedral, Clermont-Ferrand: 108 meters. The building site of Notre-Dame-de-l'Assomption Cathedral begins in the middle of the 13th century. It took seven centuries to complete it, with long interruptions of construction. It is Violet-le-Duc who finishes it in the nineteenth century. Its particularity: the use of the lava stone that gives it this particular aspect.

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