that measures the equation of time, the bars of a chapel door that resonate like a xylophone, a mysterious phallic symbol in San Gennaro catacombs, a little-known museum with a section dedicated to Punch, a unique anatomical model dating from the 18th century, a raft ride 20 metres below Piazza del Plebiscito ... Far from the crowds and the usual cliches, Naples holds many well-hidden treasures that are revealed only to local residents and travellers who know where to step off the beaten track. An indispensable guide for those who think they are familiar with Naples or who want to discover another side of the city.