This 700-meter tunnel is yet another architectonical masterpiece left behind by the ancient Romans. It connects Naples with the nearby town of Pozzuoli. More importantly, it also serves as the final resting place of some very important historical figures. Rumour has it this is where the famous Roman poet Vergil was buried.
The locals call it Crypta Neapolitana, but it is also known as the Seiano Cave after Seianus, a Roman noble, who commissioned its enlargement in the 1st century AD.
The crypt is currently closed to the public.
Wikipedia https://en.wikipedia.org/wiki/Crypta_Neapolitana
Address 77 Via Alessandro Manzoni, Napoli 80123, Italy
Coordinates 40°49'42.398" N 14°12'48.69" E