Cenacolo Vinciano (The Last Supper)Leonardo's wall painting in the refectory beside Santa Maria delle Grazie. Entry is by timed slot for fifteen minutes, booked well in advance, and the visit is short.
Leonardo3 MuseumInteractive museum near the cathedral with full-size working models built from Leonardo's drawings. Most exhibits can be touched or operated.
MUBA Museo dei Bambini MilanoChildren's museum in the Rotonda della Besana, built around hands-on exhibitions and workshops for younger children. Sessions are timed and booked in advance.
Museo di Storia Naturale di MilanoNatural history museum inside the Giardini Montanelli, with dinosaur skeletons and habitat dioramas. Easy to combine with the gardens outside.
Indoor
Museo Nazionale della Scienza e della Tecnologia Leonardo da VinciThe largest science and technology museum in Italy, with halls of machines, trains and planes, a Leonardo section and a submarine that can be entered on a separate timed ticket.
Pinacoteca di BreraMajor collection of Italian painting in the Brera palace, which also holds the botanical garden and observatory. The surrounding streets are pleasant to walk.
Triennale MilanoDesign and architecture museum on the edge of Parco Sempione, with changing exhibitions and a terrace cafe.
Indoor
WOW Spazio FumettoMuseum of comics, illustration and animation in a former industrial building, with changing exhibitions and workshops for children. Open afternoons only, closed Mondays.