Catacombs of San Gennaro
Capodimonte / Rione Sanità, Italy

The Catacombs of San Gennaro reveal a quieter and much older dimension of Naples. Guided visits lead through broad spaces cut into the tuff, with early Christian paintings, burial areas and underground basilicas explaining the city’s relationship with its patron saint. The two levels developed over centuries rather than as a single planned monument. Pair the visit with time in Rione Sanità, but leave room in the schedule for the booked tour and wear an extra layer for the cool underground conditions.