In the Panizzi Library in via Farini 3 where, in one of the many rooms, the ceiling holds a beautiful and colourful surprise. Entering the Sol Lewitt reading room and looking up you will notice that on the vault there is a not particularly uniform coloured stain: it is the work Wall Drawing #1126 Whirls and Twirls 1 (literally whirls and eddies) by the American artist Sol LeWitt. The work is an interweaving of spirals and colors in motion, a true chromatic feast for the eyes.