Join this tour and visit the most important sites of the city centerand the domitilla catacombs with a natural gas bus provided with an audio guide service the tour is pays respect tothe environment and offers a sustainable and ecological kind of tourism this package offers you the easiest way to reach the domitilla catacombs the largest ones in rome with about 17 km 105 miles of tunnels more than 150 000 burials and the underground 4th century church visiting this archaeological sit