Leo was our tour guide. Leo was knowledgeable about the history of the Catholic Church. My group was disappointed based on the written information provided in the booking details. My group had a different expectation of what the tour was going to involve. We thought the tour would be more involved in the actually catacombs. The catacombs were not a large area to explore. We spent about 20 minutes inside the catacombs. We felt like it was a history lesson on the Catholic Church. The 90 minutes tour consisted of 45 minutes approximately outside in the attached graveyard, approximately 20 minutes in the beautiful main church upstairs just walking around on your own, and the last 20 minutes were walking inside the basement (catacombs) of the church on your own.