Orvieto, Basilica Cathedral of Santa Maria Assunta (or Duomo), the interior, Chapel Nova or St. Brizio Chapel, northern wall: "Pandemonium" fresco by Luca Signorelli, (1500 - 1502). Detail. In the lower right corner, in the foreground, the Eritrean Sibyl reads her prophetic book together with the prophet David, noting the truth of the predictions at the advent of the Dies Irae. Behind them an earthquake causes a temple to collapse and the brigands triumph in anarchy, stripping three young men. More in the distance, a biblical tsunami arrives to lift the ships on the waves, which are about to threaten the city; in the sky the sun and the moon are ominously darkened.
