Every time I read about Rome’s underground archeological world, I always think about what Romans often say: “Wherever you dig in the city, you’ll find something interesting.” It’s true: there’s a whole city under the city, in Rome: catacombs, ancient homes and streets that reach into the bowels of the Earth, or so it seems to us, dwellers of the above-ground world.

Rome is like a layered cake made with history and time, instead of vanilla sponge. The importance of its archaeological underground is well known, even among the most distracted of tourists –  who don’t know about the catacombs – but there are some areas that mass tourism may have not quite discovered yet.