How deep is the underground in Naples?
How deep is the underground in Naples? Down a long case descending some 120 feet (40 meters) below the earth, aqueducts, sewer tunnels, rainwater cisterns, caverns, catacombs, and pre-Christian hypogea can be found in the tuffaceous cavities, along with roadway and rail tunnels. Some caves that were part of the reservoir are still full of water today.
What is the largest underground in the US?
SubTropolis is a 55,000,000-square-foot (5,100,000 m2), 1,100-acre (4.5 km2) artificial cave in the bluffs above the Missouri River in Kansas City, Missouri, United States, that is claimed to be the world's largest underground storage facility.
Is Naples safe to walk around?
In general, Naples is a great city and tourists should feel comfortable visiting if they follow normal precautions. Although there is some crime in Naples, Italy, petty theft is the most likely type of crime to target tourists. You'll want to take normal precautions and avoid drawing unnecessary attention to yourself.
Why is Naples so special?
In recent decades Naples has become famous for the ancient ruins containing an entire hidden city on which it sits. Known as Napoli Sotteranea, the underground world of the forgotten town is chock full of ruins from Greek and Roman periods.