Over the centuries, Mont Saint-Michel, an extraordinary island located in the delta of the Couesnon River, in Normandy, France, a place floating between the sea and the sky, has been a sanctuary, an abbey, a fortress and a prison. But how was this architectural wonder built?

Cast:Cédric Zimmerlin,

Genre:Documentary, History,

country:France,

Production:Inrap, ARTE, CNRS Images, Gedeon Programmes, CMN,