Duomo di Napoli (Naples Cathedral), Naples (must see)

Naples Cathedral’s construction began in the late 13th century under Angevin rule, on a site already occupied by earlier Christian basilicas and Roman structures. This complex past is still visible today: beneath and beside the cathedral lie the remains of early Christian churches, including the Basilica of Santa Restituta.

The cathedral’s main structure reflects Gothic architectural principles introduced from northern Europe, particularly in its soaring interior and pointed arches. Earthquakes, fires, and restorations reshaped parts of the building, introducing new artistic influences over time. The façade seen today dates largely from a 19th-century Neo-Gothic restoration, while the interior preserves medieval elements alongside Baroque chapels and artworks.

One of the cathedral’s most important spaces is the Chapel of the Treasury of San Gennaro, built in the early 17th century and entirely separate from the cathedral’s original structure. Facing the apse, entering the right side of the cathedral brings you close to the chapel. The entrance is easily recognisable thanks to its imposing scale and black gate. This richly decorated Baroque chapel houses the relics of San Gennaro, Naples’ patron saint. Several times a year, crowds gather here to witness the so-called miracle of the liquefaction of the saint’s blood, a ritual deeply embedded in local tradition. According to legend, failure of the blood to liquefy is seen as an omen of disaster for the city.

Directly opposite the entrance to the Chapel of the Treasury of San Gennaro is the entrance to the Basilica of Santa Restituta, the original church dating to the 4th century AD. Inside, the basilica preserves several remarkable elements, including a Greek wall associated with the ancient Temple of Apollo, a stretch of Roman aqueduct, and an inclined section of ancient Greek roadway.

While you are here, you can step from the main nave into earlier basilicas, observe medieval mosaics and tombs, and contrast the cathedral’s restrained Gothic lines with the dramatic Baroque intensity of the Chapel of the Treasury of San Gennaro.