On September 3, the eve of the feast of St. Rose, the people of Viterbo follow the transportation of "La Macchina" ("the Machine of St. Rose") a massive tower, illuminated with 3,000 tiny electric lights and 880 candles, and topped off with a statue of her, which is carried for 1,200 metres through the darkened streets of the old medieval town on the backs of around 100 volunteers called "facchini". The tradition goes all the way back to September 4, 1258, when the body of the saint was exhumed and transported to the Monastery of Saint Damian; but it was not until 1664, following seven years of plague in the city, that a "machine" first appeared. In gratitude for having survived such a terrible pestilence the citizens voted to renew the veneration of their saint every year.