---
title: "What to See — Naples Underground — Napoli Sotterranea"
description: "Discover what to see in Naples Underground: Greco-Roman tunnels, the Augustan aqueduct, WWII shelters, the Roman theater, and underground gardens."
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[Napoli Sotterranea](/en)

Experiences

[What to See](/en/what-to-see)[Opening Hours](/en/opening-hours)[How to Get There](/en/how-to-get-there)[FAQ](/en/faq)

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# What to See

## The Greco-Roman Route

The core of the underground path consists of tunnels dug by the Greeks in the 4th century BC to extract the tuff needed to build the city walls. These tunnels were later expanded by the Romans, who transformed them into a sophisticated aqueduct system. Walking through these narrow, evocative corridors, you can still sense the hydraulic engineering from over 2,400 years ago.

## The Augustan Aqueduct

The Augustan aqueduct represents one of the most impressive engineering works of ancient Rome in southern Italy. Built during the reign of Augustus, it carried water from the Serino river along a route of over 70 kilometers. The underground cisterns, some up to 15 meters tall, were connected by a capillary network of tunnels. The system remained in use until the 17th century.

## The Air-Raid Shelters

During World War II, the underground spaces were converted into air-raid shelters to protect the population from Allied bombings. Hundreds of thousands of people found refuge in these cavities during 200 bombing raids. You can still see original writings on the walls, improvised ventilation systems, and everyday objects left by those who spent entire nights there.

## The Roman Theater

Hidden beneath the buildings of the historic center is an ancient Roman theater from the 1st century AD, where Emperor Nero is said to have performed. Discovered in the 18th century, the theater was gradually absorbed into the foundations of the buildings above. Some portions of the cavea, stage, and access corridors are still visible and open to visitors.

## The Underground Gardens

The Underground Gardens are one of the most surprising attractions. Inside ancient cisterns, where natural light filters in from above, lush plants and flowers grow. This urban regeneration project combines archaeology and nature, creating a green oasis 40 meters underground.

## Book your experience

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![Naples Underground: Skip the Line Ticket + Guided Tour](https://aws-tiqets-cdn.imgix.net/images/content/b52b06c95c8f435eb9c4e701431623a9.JPG?auto=format%2Ccompress&fit=crop&h=675&w=1200&q=70)

### Naples Underground: Skip the Line Ticket + Guided Tour

4.5 · 1h 30min 

From €18,00



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### Catacombs of San Gennaro: Guided Tour

4.7 · 50 min 

From €13,00



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Napoli Sotterranea 

Explore the underground of Naples: tickets, guided tours and passes for a journey through the city's thousand-year history.

Napoli Sotterranea 

Explore the underground of Naples: tickets, guided tours and passes for a journey through the city's thousand-year history.

## Links

-   [Experiences](/en/experiences)
-   [What to See](/en/what-to-see)
-   [Opening Hours](/en/opening-hours)
-   [How to Get There](/en/how-to-get-there)
-   [FAQ & Help](/en/faq)
-   [Sitemap](/en/sitemap)

## Legal

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