This terracotta church and the adjoining Dominican convent, today a UNESCO World Heritage site, were begun in 1465. The Renaissance apse is credited to Donato Bramante, but the refectory houses the star of the show and one of the world's most iconic images, Leonardo Da Vinci's The Last Supper (Cenacolo Vinciano). Because Da Vinci worked on a dry wall over three years, rather than on wet plaster over a week, the masterpiece is not a fresco, and began to deterioriate within a few weeks of completion in 1498. It miraculously survived Allied bombing in 1943, and has since undergone extensive restoration to preserve its colour. To see the painting, book tickets well in advance over the phone or online. You will be allotted a visiting time and reservation number, which must be presented 30 minutes before your visit. Vacancies may be available for those who turn up at the last moment but don't count on it!