sentences:  Legend says that the poet—also renowned as a sorcerer—called the tunnel into existence by his powers.The tunnel was probably the work of Lucius Cocceus Auctus, the Roman engineer who built the nearby Seiano Grotto and many of the fortifications of the Roman Imperial Port in Baia.Parco Virgiliano also contains the authenticated tomb of a more recent poet, Giacomo Leopardi, who died in Naples in 1837.