Commemorating 60 years since the Florence flood and 580 years since the death of architect Filippo Brunelleschi, art historian Laura Johnson explores the construction and later restoration of Florence’s Duomo. She highlights Donatello’s life-like Mary Magdalene, damaged in the 1966 flood and now a symbol of resilience. Johnson also examines the disaster’s causes and the efforts of Americans and Italians, the “mud angels,” to rescue and preserve Florence’s cultural treasures.