Naples Cathedral, or Duomo di Napoli, stands on Via Duomo in the historic centre. Behind its late-19th-century neo-Gothic façade, the city’s principal church reveals centuries of architectural layers: a grand Baroque nave, the early Christian Basilica of Santa Restituta and archaeological remains beneath the building.
The cathedral is closely associated with San Gennaro, Naples’ patron saint. Several times a year, worshippers gather to see whether blood said to belong to the saint liquefies inside sealed vials. The best-known ceremony takes place on 19 September, his feast day. The richly decorated Royal Chapel of the Treasure of San Gennaro reflects the depth of the city’s devotion, with frescoes and precious works of art.
Look for the early Christian mosaics in the Baptistery of San Giovanni in Fonte, reached through Santa Restituta, and allow time for the archaeological area if it is open. The nearby Pio Monte della Misericordia, home to Caravaggio’s Seven Works of Mercy, and the pizzerias of Via dei Tribunali make natural stops on a walk through the old town.
Visit early on a weekday for a quieter nave, and remember that this is a working church: dress respectfully and keep voices low during services. The main cathedral is generally free to enter, but some adjoining attractions require tickets; check current opening times and access before visiting.