A town on a plug of volcanic rock rising sheer from the Umbrian plain, defensible since the Etruscans. Its cathedral facade is one of the great works of Italian Gothic, a blaze of gold mosaic and carved biblical scenes, and inside are Luca Signorelli's terrifying frescoes of the Last Judgment, which Michelangelo is said to have studied. Beneath the streets runs a honeycomb of Etruscan and medieval tunnels: wells, quarries, dovecotes cut into the soft tufa. The Pope's engineers dug St Patrick's Well here, a double-helix staircase so mules could descend and climb without meeting.
Description via source. Coordinates and heritage data from the Atika atlas.
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