Image by Bonnie Alberts Lonely Planet
This evocative guided tour leads you 40m below street level to explore Naples' ancient labyrinth of aqueducts, passages and cisterns.
The passages were originally hewn by the Greeks to extract tufa stone used in construction and to channel water from Mt Vesuvius. Extended by the Romans, the network of conduits and cisterns was more recently used as an air-raid shelter in WWII. Part of the tour takes place by candlelight via extremely narrow passages – not suitable for expanded girths!