What a museum. 50,000 M2, 15,000 objects, 7 departments, 17 exhibition areas, 13 labs, 155 educational activities and 2 libraries. Founded in 1953 this is the largest science and technology museum in Italy. The museum is named after Leonardo da Vinci who mastered Rt science and technology. There is a huge collection of working models by Leonardo some of which I had not seen before. There are planes, steam engines, a submarine, a large portion of a sea going liner, early TV sets, Telegraph etc.