Crypta Neapolitana

The Crypta Neapolitana (Latin for "Neapolitan crypt") is an ancient Roman road tunnel near Naples, Italy [1]. It was built in 37 BC and is over 700 metres long [1]. The tunnel connected Naples with the so-called Phlegrean Fields and the town of Pozzuoli along the road known as the via Domiziana [1]. The eastern entrance (on the Naples side) lies in the Vergiliano park of Piedigrotta ("at the foot of the grotta"); the western end is in the area now called Fuorigrotta ("outside the grotta") [1]. The tunnel was first built by the architect Lucius Cocceius Auctus for Agrippa during the civil war between Octavian and Sextus Pompeius in c. 37 BC [1].