This article originally appeared in the April 2016 issue of Dream of Italy. Updated 2018. Note: The great city of Naples also offers many unique experiences outside of the city, which we detail in the May 2016 issue of Dream of Italy. Go Underground (39) 081 296944 www.napolisotterranea.org Price: From 15€ Show us the child who isn’t intrigued by touring beneath a city and…