Beneath the streets of Naples, Italy, is a whole other city . . . a "Parallel City" as many call it. Dating from the Greco-Roman periods, a literal honeycomb of interconnected tunnels, caverns, aqueducts, and huge voids left when volcanic Tufo, a yellowish sandstone was excavated to build the city's palaces and villas. Modern-day urban speleologists conduct guided tours of many parts of this mysterious underworld. Come take an in-depth look at the "Sottosuolo" of Napoli !

History    . . . a fascinating overview of the  origins and extent of Naples' incredible underground world. 
Tour a WWII Air Raid Shelter  A living history frozen in time beneath the city. 
Photos  A rare glimpse at the enormity of the caves, tunnels and passageways beneath the city .
For even more current information click on the Napoli Underground graphic below for the most comprehensive web site available anywhere on the internet about the Naples Underground. The website will open with the English language version, which I am proud to help translate from the Italian. For a complete listing of guided tours of the amazing underground click on the "Underground Tours" listing in the menu on the left. Free registration gives you access to an huge database covering all explored caverns, cavities, tunnels and more beneath the city. There are photos and even some videos linked to database entries. This is a fantastic resource for urban speleologists!   Click below and have fun!  Larry