Heavy floods inundate the city of Florence, Italy, caused by flooding of the Arno River on November 4, 1966. A man views immense erosion on the side of the Arno River caused by floodwaters. Trucks parked outside the Florence National Central Library. Piles of books and manuscripts destroyed by floods. Conservators flip through pages of a book. Workers try to clean and restore famous art works by Italian Renaissance artists.