Known as the Wonder of the West, Mont Saint-Michel looks as if it could have been plucked from a fairytale. The religious sanctuary on France's Normandy coast turns 1,000 this year. Since the first stone was laid in 1023, it has been home to monks, monarchs and prisoners; a historic pilgrimage site that welcomes 3 million visitors each year. In this edition we meet some of the people who preserve its magic.