From the cloister adjoining the church of Ognissanti you can go into the former refectory of the convent, which contains in the far wall a frescoed Last Supper by Domenico Ghirlandaio (1449-1494). This fresco is admirable in particular for its descriptive style and serene setting; on the left wall is the preparatory design. All around other frescoes and preparatory design.
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Cenacolo del Ghirlandaio Convento di Ognissanti, Borgognissanti 42 (055 2396802). Open We, Thu, Fri, Sun 9am-12pm. Admission: free.