Discover Italy’s treasures below the earth’s surface - tunnels, archaeological layers of housing, paleo-christian sites and catacombs, architectural marvels under ground... book your Underground Tours with WeekendinItaly.com!
Underground Tour Caelian Hill
Follow your knowledgeable guide and discover one of the best conserved Roman era residential building complexes!
Necropolis of Via Triumphalis and Vatican Museums
The Roman-age archaeological excavations which extend below the whole of the Vatican hill are again accessible to the public