LAPIS Museum
The beautifully restored 17th-century Basilica di Pietrasanta, a Cosimo Fanzago Baroque masterpiece built on the site of the Roman Temple of Diana, hosts regular multimedia exhibitions, but the star attraction here is the underground visit to a section of Naples’s oldest aqueduct. Four tours a day descend 40 meters (131 feet) below the busy Via dei Tribunali to large lavishly illuminated cisterns hewed from excavated tuff two millennia ago, still filled with running water (thanks to a collaboration with the city’s waterworks).
