The Ludus Magnus: Where Rome’s Gladiators Prepared for the Arena

Millions of people visit the Colosseum every year to stand inside the arena where gladiators once fought before roaring crowds. But just across the road lie the remains of a place that most people walk straight past: the Ludus Magnus, where Rome’s gladiators trained before entering the arena. 
While the Colosseum was built for the spectacle, this was where every gladiator’s journey began.

Rome’s Largest Gladiator School

The school was built by Emperor Domitian towards the end of the 1st century AD, not long after the Colosseum itself. It wasn’t the only gladiator school in the area: three others stood nearby, creating an entire training district around the amphitheatre. But the Ludus Magnus was by far the largest, and today it’s the only one whose remains can still be seen. 

More than a training ground, it was where gladiators lived, trained, ate, and prepared for combat. Rows of small rooms surrounded the central arena, providing accommodation for the fighters between training sessions.

At the centre stood a small oval arena surrounded by tiered seating for around 3,000 spectators. Here, the public could watch gladiators train and demonstrate their skills before they faced the much larger crowds next door. Even today, the curve of the arena is still visible, giving a rare glimpse into the world behind Rome’s greatest spectacles. 

Perhaps the most remarkable feature lay beneath the ground: an underground passage leading linking the Ludus Magnus directly to the Colosseum. On the day of the games, gladiators could make the short journey underground, emerging inside the amphitheatre without ever passing the crowds above.

Life Before the Arena

When we picture gladiators, we usually imagine the moment they stepped into the Colosseum: weapons raised, crowds roaring, and thousands of eyes fixed upon them. In reality, those dramatic moments made up only a tiny fraction of their lives. Most of their time was spent here. 

Training was intense and carefully organised. Gladiators practised with wooden weapons and shields that were deliberately heavier than those they would eventually carry into combat, helping build the strength and endurance they needed in the Arena. 

Around the training arena were all the buildings that kept the school running: armouries for storing weapons, workshops for repairing equipment, infirmaries for treating injured fighters, and even the spoliarium, where the bodies of those killed in combat were stripped of their armour. 

The gladiators themselves came from all across the Roman world. Some were prisoners of war, others were enslaved, while a few volunteered in search of money, fame, or a fresh start. Whatever their background, life inside the Ludus Magnus revolved around one goal: surviving long enough to fight another day. 

Lost Beneath the Modern City

For centuries, the Ludus Magnus thrived alongside the Colosseum. 

But as gladiatorial games gradually faded away, also the school that supported them lost its purpose. By the early 5th century, Emperor Honorius officially banned gladiatorial combat, bringing an end to a tradition that had shaped Roman entertainment for generations. 

Like so much of ancient Rome, the Ludus Magnus eventually vanished beneath the growing city. Streets, houses, and eventually modern apartment buildings rose above it, hiding the remains for centuries until excavations in 1937 unexpectedly brought part of the school back into the light. 

Today, only a section of the complex is visible. Much of the school still lies beneath the surrounding streets, but enough survives to trace the curve of the arena and imagine the world that once existed here.

Why You Should Go

The Colosseum tells the story of the games themselves. The Ludus Magnus tells the story of everything that came before it. 

Seen on its own, the site might not look like much. But once you know what happened here, those low brick walls become one of the most fascinating places around the Colosseum. Together, the Colosseum and the Ludus Magnus tell the full story of gladiatorial games: not just the battles watched by thousands, but the training, discipline, and daily lives behind them. 

If you’d like to discover this overlooked side of ancient Rome, our Colosseum Roma Pass tour stops briefly at the Ludus Magnus before you explore the Colosseum itself, revealing an often-overlooked chapter in the story of Rome’s most famous monument.