One of the most romantic shrines of pilgrimage in Rome is the church of St. Onofrio. It is situated in the Trastevere, that portion of the city beyond the Tiber whose inhabitants boast of their pure descent from the ancient Romans. A steep ascent on the slope of the Janiculum, through a somewhat squalid but picturesque street, and terminating in a series of broad steps, leads up to it from the Porta di San Spirito, not far from the Vatican. The ground here is open and stretches away, free from buildings, to the walls of the city.