Visit the Naples underground beneath the streets of this ancient city to discover tunnels, aqueducts, and old ruins.

With a guide, see a Roman theater, walk through Bourbon-era passageways with blue tiles, and view the aqueduct that provided water for 23 centuries.

You will see a home with a trapdoor under the bed leading to a Roman ruin. Then, finish the tour with a classic Neapolitan pizza at a local pizzeria.