Cripta
Routine excavation work revealed this crypt, which had been hidden for centuries under the grand pavimento (floor) of the Duomo and was opened to the public in 2003. In the late 13th century, an unknown master executed the crypt's breathtaking frescoes, which have sustained remarkably little damage and have retained their original colors. The Deposition/Lamentation proves that the Sienese school could paint emotion just as well as the Florentine school—and that it did so some 20 years before Giotto.