Saint Venantius, patron of a town built on one of the world's three «bonsai volcanoes»
📅 Every year, on 18 May
San Venanzo celebrates its patron Saint Venantius the martyr on 18 May; the municipal territory sits on one of the three «bonsai volcanoes» identified by recent studies, and is home to venanzite, a volcanic rock unique in the world visible in an ancient quarry.
