At the beginning of the XVIIème century, the monastery founded in the VIIème century by Amandus is rebuilt with such a magnificence that we can compare it with Escurial! Two vestiges were saved by the wars and the Revolution, of which the abbey tower which shelters the chime. This tower is the best example of the baroque architecture in the North of France. High, it 83 m is carved in embossing in the sandstone at the ground floor and a more tender material on the floors where it worsens unfortunately. A rescue campaign is begining. A staircase of 362 steps around a hardcore core of Turned what remains first church that was destroyed in 1066 by a fire. It makes it possible to reach the chime of 48 bells, that a monumental clock animates.

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