Crypta Neapolitana

Not to be confused with Grotta Seiano (cave of Sejanus) in Posillipo.
Entrance to the Crypta Neapolitana from the Naples side.
Western, Fuorigrotta end
Serino Aqueduct entrance

The Crypta Neapolitana[1] (Latin for "Neapolitan crypt") is an ancient Roman road tunnel near Naples, Italy. It was built in 37 BC and is over 700 metres long.

The tunnel connected Naples with the so-called Phlegrean Fields and the town of Pozzuoli along the road known as the via Domiziana.

  1. ^ Crypta Neapolitana (Naples, Italy), A Multidisciplinary Underground Heritage Site Graziano Ferrari1, Raffaella Lamagna1, Elena Rognoni1, Hypogea 2019 – Proceedings Of International Congress Of Speleology in Artificial Cavities – Dobrich, MAY 20-25 2019