Rome Underground ToursAbout Rome Underground Tours
An independent comparison of the tours that go beneath Rome — the catacombs of the Appian Way and Via Salaria, the Colosseum hypogeum, Nero's Domus Aurea, the stacked church of San Clemente, the Capuchin bone chapels and the aqueduct rooms under the Trevi district. We compare tour listings against each site's own official access rules. We do not operate or personally conduct these tours, hold no bookings and run no vehicles. The listings sit on the Rome underground tours comparison, and every figure on this site carries the date it was read.
Why this site exists
Search for Rome underground tours and you get nine results, none of which tells you the one thing that decides your day: when each site is open.
The page currently ranking first is a traveller forum thread. The second is a listing page of 494 words. The most thorough of them runs to six thousand words about its own tours and never prints an opening time, a ticket price or a closing day. So visitors turn up at the Catacombs of St. Callixtus on a Wednesday, when it is shut. They book the Domus Aurea for a Tuesday, when it does not open at all. They buy a Roma Pass expecting it to cover the catacombs, which it has never done.
None of this is hidden. It is printed on each site's own website, in Italian as often as English, spread across nine separate organisations that do not coordinate. Collecting it into one table next to the tours is the whole job of this site.
Where the facts come from
Tour prices, durations, ratings, review counts, guide languages and cancellation terms are read off each operator's own listing on the date shown, in US dollars. Tour listings checked: 5 September 2026, across more than 25,000 verified reviews.
Opening hours, closing days and ticket prices come from each site's own official page — the Pontifical Commission's catacomb sites, the Basilica di San Clemente, the Museo e Cripta dei Cappuccini, Vicus Caprarius, CoopCulture for the Domus Aurea and the Parco archeologico del Colosseo. Where two sources disagree, we go to the site's own page and say so on the page where the figure appears. Site information checked: 5 September 2026.
Where something could not be verified to our satisfaction, we write that instead of printing a number. The Colosseum's official ticketing domain does not always answer requests from outside Italy, so its euro figures are flagged as needing confirmation at the point of booking rather than stated as fact.
What we get wrong, and how it gets fixed
Prices change, sites close for restoration, and official pages go stale — the Catacombs of St. Callixtus currently advertises an annual closure period that ended in February 2025. We check the underground access facts on this site quarterly and after any change we hear about.
If something here is out of date, the fastest fix is to tell us. Every page carries the month it was last reviewed so you can see how old the information you are reading actually is.
How the site earns
Tour links on this site are affiliate links. If you book through one, the platform pays us a commission and you pay exactly what you would have paid going direct — the price is not marked up.
That arrangement pays for the research; it does not decide the recommendations. The cheapest catacomb ticket on this site is recommended openly despite paying us the least, and where a site is better visited on your own ticket — Vicus Caprarius at €4, San Clemente's own booking page — we say so and link to the official site, which pays us nothing. Full affiliate disclosure.