Build four of Leonardo da Vinci's most famous inventions and enter his fascinating and curious world: the tank, the flying machine, the mechanical knight and the double helix staircase.Detailed instructions and accurate illustrations will guide you through the realisation of these incredible constructions that made history.The book is enriched with interesting facts about Leonardo's life, his inventions and his creative process.All of these help you to explore the various themes and contextualise the 4 models presented.