Only the right arm of one of the two transepts and the octagonal belltower, the Clocher de l'Eau-Benite, remain.
The belltower survived an earthquake that destroyed most of the building.
mnli hypothesis: The belltower survived an earthquake that destroyed most of the building. premise: Only the right arm of one of the two transepts and the octagonal belltower, the Clocher de l'Eau-Benite, remain.