Rainy afternoons in Naples offer a unique opportunity to explore the underground world of the city. Take a guided tour of the Napoli Sotterranea, a network of tunnels, catacombs, and ancient aqueducts that lie beneath the streets of Naples. Descend into the depths and discover the hidden history of the city. Learn about the ancient Greek and Roman origins of Naples, see the remains of ancient structures, and hear fascinating stories about the city's past. The underground tour provides a fascinating glimpse into the layers of history that lie beneath the bustling streets of Naples.