Orvieto's Gothic cathedral, which is one of the most celebrated in Italy, was begun in 1290 to commemorate the miracle at Bolsena, a town situated just to the southwest, where in 1263 a priest witnessed the miraculous appearance of drops of blood on a Host that he was consecrating; a large silver shrine in the Cappella (chapel) del Corporale contains the Holy Corporal (linen altar cloth) from Bolsena. The cathedral's west facade, a fine polychrome monument of richly sculptured marble, is divided into three gables with intervening pinnacles. The interior of the building is richly decorated with the work of a number of medieval sculptors and painters, notably the frescoes by Luca Signorelli and Fra Angelico in the Cappella Nuova. Many 16th-century sculptures adorn the cathedral, which was completed in 1580.
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