For the first time you can see an extraordinary, immersive performance in the Sistine Chapel, with the multi-media theatrical show ‘Michelangelo and the secrets of the Sistine Chapel’, by Marco Balich, with music by Sting. Until 3 February there are 56 Picasso sculptures at the Galleria Borghese – close to the suites – shown alongside the gallery’s magnificent collection of Bernini and other works. At the also nearby Ara Pacis museum, there’s an exhibition devoted to Marcello Mastroianni. The uppermost levels of the Colosseum are open for the first time in 40 years, only accessible via pre-booked guided tour. Palazzo Barberini, one of Rome’s great palaces-turned-art-galleries, has opened 11 formerly inaccessible rooms; visitors can also now descend down Borromini’s famous helicoidal staircase. At Scuderie del Quirinale there’s a major exhibition on Ovid.