ItalyThe Grotta di Cocceio is an ancient Roman tunnel dating from 38-36 BC, stretching nearly 1 km through the tuff stone of Monte Grillo [1]. It connected Lake Avernus with Cumae, linking the volcanic crater lake to the ancient Greek colony [1]. The tunnel was constructed by architect Lucius Cocceius Auctus at the command of Marcus Agrippa, who was transforming Lake Avernus into the military port known as Portus Julius [1].
Grotta di Cocceio
| Type | Megalithic structures |
|---|---|
| Period | 500 BC - 1 AD |
| Country | Italy |
| Coordinates | 40.8402° N, 14.0706° E |