The Underground Hypogeum is a unique and exclusive site within the Roman Colosseum.
Serving as the backstage of the Arena, it was where wild animals and gladiators awaited their turn to be hoisted to the Arena floor.
These tunnels and chambers beneath the Arena offer a revealing look into the detailed preparations and logistics behind ancient Rome’s grand spectacles.
Important: Colosseum’s Underground is the most exclusive part of the attraction, and as a result, ONLY a limited number of tour tickets are sold daily. Book yours today for a guaranteed entry.
Buy This TicketQuick Facts about the Underground
Location: Under the Arena floor
Constructed: 70–72 AD
Purpose: To serve as a backstage and to release gladiators and wild animals on the Arena
Structure: Two-level subterranean network of tunnels and cages made of travertine limestone, concrete and bricks
Dimension: 15,000 square meters (1.5 hectares) of tunnels and passages
What was the Colosseum Underground used for
The Hypogeum of the Colosseum was not constructed simultaneously with the Upper tiers and Arena; Emperor Domitian commissioned its construction a decade later.
This underground structure served a crucial role, housing wild animals, gladiators, and slaves before surprising the audience by bringing them up to the Arena floor from below.
The Hypogeum featured a large central passage along the main axis, surrounded by 12 curved corridors.
Within these corridors were 80 wooden freight elevators used to hoist machinery and animals onto the Arena floor for the games.
Advanced systems employing counterweights and inclined planes were used to transport props and materials to the surface from below.
Evidence of these systems remains visible today through holes in the corridor floors.
Why visit the Underground?
Visiting the Colosseum’s underground provides a complete understanding of this historic site and the meticulous preparations that preceded each event in the Arena.
Descending into the dark and narrow underground passages offers a glimpse into the bustling activity that once filled these spaces, from attendants and slaves to wild animals and gladiators.
Exploring the underground mechanics allows you to appreciate the complex work done to stage the epic fights witnessed in the Arena above.
It’s an exploration that deepens your appreciation of ancient Roman spectacle and the Colosseum’s history.
How to visit the Underground
Booking a guided tour with access to the underground area is the only way to gain entry to this site as they do not allow individual visitors to the restricted areas such as the Arena and Underground.
All Colosseum guided tour tickets granting access to the Underground also include a comprehensive visit to the archaeological sites – Colosseum’s 1st and 2nd tiers, the Arena floor, the Underground Chambers, Palatine Hill, and the Roman Forum.
The entrance to the underground is via a staircase located along the main axis in the northwest section of the amphitheater, near the Stern entrance.
Visiting Colosseum Underground? Here are some tips:
The passageways are dimly lit in some areas and include narrow pathways, making it challenging for people with disabilities, claustrophobia, and very young children.
Check the weather forecast on the day of your visit, as heavy rain can sometimes cause flooding in the Underground, leading to tour cancellations.
Due to high demand, tickets for this exclusive area sell out quickly, so it is advisable to book your tickets well in advance to secure your spot.
Carry your ID for your security checks that are done before you step into the Colosseum.
What can you see in the Underground tour of the Colosseum
See the blocked corridor that once connected the gladiator training school (Ludus Magnus) to the Colosseum.
Walk through the tunnels, which contain well-preserved walls and brick structures dating back to the 1st century, excavated after being buried for hundreds of years.
Look at the Bronze capstans (revolving cylinder-like structures) embedded on the brick floors that might have been used to pull trapdoors using ropes.
The replica of a wooden elevator that was used to lift gladiators and animals onto the Arena is another highlight.
You can observe the drainage system, which channels rainwater from the Labicano Creek.
Note: The water drainage system is not in optimal condition, which can cause flooding in the Underground during heavy rain. Consequently, underground tours are occasionally canceled due to adverse weather conditions.
FAQs
How long does a tour of the Colosseum’s Underground take?
The Underground tour through the passageways with your guide takes approximately 30 minutes. However, you need at least three hours to explore the whole Colosseum.
How many people are allowed to stay in the Underground?
For safety reasons, only two groups of 20-25 people can explore the underground simultaneously.
Can we go on a self-guided tour of the Hypogeyum?
No, only guided tour tickets grant you access to the Underground.
Can I take photos during the Underground tour?
Yes, you can take pictures during your Underground tour of the Colosseum.
What should I bring with me on the Underground tour?
Carry your ID, wear comfortable shoes, and bring plenty of water.
Are there any age restrictions for the Underground tour of the Colosseum?
There are no specific age restrictions, but please note that the tunnels are dimly lit with narrow pathways, which may pose challenges for individuals with mobility issues, as well as claustrophobia. Younger kids are also known not to enjoy the experience.
Which areas are included in the Underground Guided Tour?
An underground guided tour of the Colosseum provides all-access admission to the Colosseum’s 1st and 2nd tiers, the Arena floor, the Underground Chambers, Palatine Hill, and the Roman Forum.
Do all underground tickets include Arena entry?
Not all underground tickets include access to the Arena. Only all-access tickets to the Colosseum grant access to the Arena as well. Be sure to check what is included in the ticket you purchase.