Piazza Duomo
& Palazzo Nanà.

01 · Place names made simple

Piazza Nicola Amore—the square many visitors meet as “Duomo”

The circular piazza sits on Corso Umberto I at the foot of Via Duomo. Neapolitans also call it 'e quatto palazze, “the Four Palaces,” after the four monumental neo-Renaissance buildings that frame its corners.

The square received its modern form during the Risanamento, the vast urban renewal that reshaped parts of Naples after the 1884 cholera epidemic. The new buildings and broad Corso Umberto I expressed a modernising city, but the ground beneath them preserved a much older public landscape.

02 · Two millennia in one block

A timeline beneath the balcony

1. Greek & Roman Naples

   A public edge of ancient Neapolis

   The area lay just beyond the earliest city walls and developed into a place of movement, ceremony and civic life. The later Roman monumental complex was connected with the games held in honour of Augustus.

2. 17th century

   Piazza della Sellaria

   The area carried the name of the Sellaria and its fountain, a reminder that the square’s identity changed with Naples’ rulers, markets and public rituals.

3. 1880s–1890s

   The Risanamento and “Four Palaces”

   The modern circular piazza and its four matching neo-Renaissance palace blocks were created during the late-19th-century redevelopment. Palazzo Nanà dates from this chapter.

4. 1938

   A monument leaves the square

   The statue of Nicola Amore—the mayor associated with the Risanamento—was moved for Hitler’s visit to Naples and was not returned to its former place.

5. 2003–2004

   Metro excavation becomes archaeology

   Work for the new station exposed substantial Roman remains. The discovery required the architects and engineers to rethink the station as a journey through archaeology, not simply around it.

6. 6 August 2021

   Duomo station opens

   Line 1 service began at Duomo, putting Garibaldi, the historic centre, Municipio, Toledo and Vomero on one direct route from the square.

03 · The city under the city

What archaeologists discovered at Duomo Metro

The finds are not a single loose object but evidence of a monumental ceremonial and athletic complex. Sources describing the excavation identify four especially important elements:

What were the Isolympic Games?

Naples’ Sebastà, or Augustan Isolympic Games, followed the model and prestige of the games at Olympia. “Isolympic” means equal in status to the Olympic tradition. Athletic and cultural contests celebrated Augustus in a city that retained a strong Greek identity under Roman rule.

This is a documentary photograph of archaeological material from the Naples Metro excavations, preserved and displayed at Stazione Neapolis. The museum collection includes finds from the Line 1 works at Piazza Nicola Amore; the temple podium and other structural remains described above were preserved in situ beneath Duomo station.

04 · Fuksas below the piazza

The new Duomo station: an “astronaut’s walk”

Doriana and Massimiliano Fuksas designed the station as a changing passage from daylight into the city’s buried layers. Backlit and carved steel panels move through cool blue and warm amber tones; reflective metal amplifies the light, while travertine floors and lava-stone stairs reconnect the futuristic interior to Campanian materials.

The platforms are about 40 metres below street level. That depth turns an everyday trip into a sequence: piazza, light, museum level, transport level, train. The archaeological discovery radically changed the project, with the surviving Roman structures intended to remain legible within the station experience.

05 · Stay inside the history

Palazzo Nanà: a late-19th-century Naples address

Historic period: late 1800s. Architectural publication THE PLAN identifies Palazzo Nanà as one of the Four Palaces built at the end of the nineteenth century. Its exterior belongs to the neo-Renaissance language chosen for the new bourgeois city: balanced façades, formal ornament and a monumental scale around an internal courtyard.

The building has eight levels including its basement and originally formed part of the residential vision for the redesigned square. A recent Eight Lab project renovated its 80 apartments, preserving the historic envelope while bringing contemporary services, materials and energy standards inside.

The name Nanà belongs to the building’s contemporary identity; the deeper architectural identity is the Quattro Palazzi ensemble. That is why the best way to tell its story is through both names: Palazzo Nanà, one of Piazza Nicola Amore’s historic Four Palaces.

06 · A five-minute field guide

How to read the square from our front door

1. Stand at the centre line of the piazza. Turn slowly and compare the four palace blocks. Their shared scale creates the theatrical “Four Palaces” effect.
2. Find the Duomo station entrance. Notice how its contemporary geometry deliberately contrasts with the stone façades around it.
3. Enter and watch the colour change. Blue, silver and amber guide the descent; travertine underfoot recalls the archaeological layer.
4. Walk north on Via Duomo. The cathedral, the Museum of the Treasure of San Gennaro and the ancient decumani are all close.
5. Return after dark. The square’s traffic, illuminated façades and station light reveal a different, more cinematic composition.

08 · Researched, not invented

Sources for the history

• Studio Fuksas — Duomo station concept, depth, materials and 2004 temple discovery
• designboom — station opening and archaeological findings
• THE PLAN — Palazzo Nanà’s late-19th-century history and renovation
• Visit Naples — Piazza Nicola Amore and the Four Palaces
• ANM Metro Art — official Duomo station archaeology and design guide

Every feature image on this page is a real documentary photograph. Dates and licences are stated in the captions so readers can distinguish the 2020 works, the 2021 station opening and the completed 2024 street view.