Naples Underground, Naples

Naples Underground, Naples (must see)

An ancient subterranean network lies beneath the city of Naples. Tunnels and caves have been carved from the volcanic rock over the last two and a half thousand years. The Greeks built the 280 mile long network in the fourth century BC to form Neapolis or New City.

The Romans then used the underground area to build aqueducts for water.

Today, visitors can explore this underground network exiting some 120 feet below Naples. Visitors descend a long stairway to view the impressive infrastructure. Naples Underground includes cisterns, catacombs, caverns, roadways, and rail tunnels.

One of the most impressive sights is the Greco-Roman theatre of Neapolis. Roman Emperor Nero had a private dressing room here.

During WWII, the underground was used as an air-raid shelter. Visitors can still see weapons and tanks left over from WWII.

The first Hypogeum Gardens are located in the underground. This experimental garden attempts to grow plants away from light and pollution.

Why You Should Visit

Naples Underground provides a fascinating and unusual look at Naples' extensive history.


Some tunnels are narrow and require a candle or flashlight. If you feel claustrophobic, skip these tunnels.

Want to visit this sight? Check out these Self-Guided Walking Tours in Naples. Alternatively, you can download the mobile app "GPSmyCity: Walks in 1K+ Cities" from iTunes App Store or Google Play. The app turns your mobile device to a personal tour guide and it works offline, so no data plan is needed when traveling abroad.

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Naples Underground on Map

Sight Name: Naples Underground
Sight Location: Naples, Italy (See walking tours in Naples)
Sight Type: Attraction/Landmark
Guide(s) Containing This Sight:

Walking Tours in Naples, Italy

Create Your Own Walk in Naples

Create Your Own Walk in Naples

Creating your own self-guided walk in Naples is easy and fun. Choose the city attractions that you want to see and a walk route map will be created just for you. You can even set your hotel as the start point of the walk.
Naples Old Town Walk

Naples Old Town Walk

The Old Town of Naples is a treasure trove of majestic architecture: historical monuments, mysterious churches, underground catacombs & caves, and beautiful fountains. Some of these landmarks are thousand years old and still preserved in their original condition. Owing to this, UNESCO has declared the area a World Heritage site.

Walking the maze of narrow alleyways to discover Naples’s...  view more

Tour Duration: 2 Hour(s)
Travel Distance: 2.6 Km or 1.6 Miles
Naples Introduction Walking Tour

Naples Introduction Walking Tour

Located nearby the infamous volcano Vesuvius, Naples is a dream destination for tourists. Being Italy's third largest city, it is also one of the oldest continuously inhabited urban areas in the world – a true gem of ancient civilizations. Initially settled by Greeks as a colony, called Parthenope, in the 9th century BC, it was then re-founded as Neápolis (“New City” in Greek) three...  view more

Tour Duration: 2 Hour(s)
Travel Distance: 3.6 Km or 2.2 Miles
Historical Churches

Historical Churches

Christianity in general and the Catholic faith in particular have always played an important role in the social and cultural life of Naples. Not everyone knows that the city boasts the highest number of churches in the world – almost 500 historic “houses of God” (1,000 in total) – accumulated over the course of 17(!) centuries. Hence the nickname – “the city of 500 domes”.

And...  view more

Tour Duration: 2 Hour(s)
Travel Distance: 3.8 Km or 2.4 Miles