Maxentius Basilica, Rome

The Maxentius Basilica: A Roman Marvel

Illustration of the interior of the Maxentius Basilica with Romanesque architecture.
The interior of the Maxentius Basilica featuring Romanesque architectural elements like thick stone walls, rounded arches, small windows, stone vaulting, and barrel ceilings. The scene includes intricate carvings and ornate columns, creating a majestic and timeless ambiance.

Discover the Grand Structure of the Basilica of Maxentius

The Maxentius Basilica, located in Rome, Italy, is one of the most fascinating pieces of Roman architecture. Also known as the Basilica Nova or “New Basilica,” it was erected in 312 AD. This impressive structure took several years to build, with construction beginning in 308 AD. Situated in the Roman Forum, a rectangular plaza that still features the remnants of ancient Roman government buildings, the basilica was the largest building in the entire Forum at the time of its construction.


A Tale of Two Emperors

The Basilica of Maxentius is sometimes referred to as the “New Basilica,” but it also goes by another name: the Basilica of Constantine. While Maxentius, a one-time Roman emperor, initiated the construction of the building, it was actually Emperor Constantine who completed it. Despite being called a “basilica,” neither emperor had religious intentions for its construction. In fact, the basilica was the last non-Christian basilica to be placed in the Roman Forum.

Function Over Form

The basilica was used for commercial purposes and to house administrative offices. Back when the Basilica was built, the term “basilica” simply referred to a building with a rectangular space, an open center space, and often (but not always) a raised apse. It was only later that the term “basilica” began to be associated with churches. This change in nomenclature occurred because early basilicas, such as the Maxentius Basilica, served as models for ancient Roman churches. The decision to model new churches on the common basilica design was driven by a desire to create a church aesthetic that was distinct from Rome’s pagan roots.

Architectural Brilliance

Not only is the Basilica of Maxentius impressive because it inspired later Roman architects, but it is also unique for its architectural features. Originally, it boasted two different types of arches: groined arches and barrel arches. The main rectangular part of the building was a massive 100x65 meters. The basilica also featured eight Corinthian columns for support, beautiful marble flooring, and a roof made of gilded bronze. The roof, interestingly, was folded to increase stability, whereas most roofs of the time were flat.

A Blend of Styles

The Basilica of Maxentius was one of the early examples of mixing and borrowing various architectural styles. It contained features of standard Roman baths and basilicas and was constructed, at least in part, using ideas obtained from the Baths of Diocletian. This blending of styles showcased the architectural innovation of the time.

The Test of Time

Most researchers believe that the south and central parts of the basilica, as well as part of the nave, were destroyed by earthquakes in 847 AD and 1349 AD, respectively. Despite the significant damage, architecture enthusiasts and historians are grateful for the remaining parts of the basilica: the north aisle and three of the barrel vaults. Though much of the Basilica is lost, its impact on Roman architecture endures.

Fun Fact

Did you know that the Maxentius Basilica originally featured a roof made of gilded bronze? This was quite an innovation at the time, adding both beauty and stability to the structure!


What was the purpose of the Maxentius Basilica? The basilica was used for commercial purposes and to house administrative offices.

Why is it called the Basilica of Constantine? Emperor Constantine completed the construction that Emperor Maxentius had initiated, hence the name.

What architectural features did the Maxentius Basilica have? The basilica featured groined arches, barrel arches, eight Corinthian columns, marble flooring, and a gilded bronze roof.

What remains of the Basilica today? Today, the north aisle and three of the barrel vaults still stand, offering a glimpse into its former grandeur.

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Live View

Check out the Maxentius Basilica on Google Maps to explore this architectural marvel from the comfort of your home!

More Examples of Romanesque Architecture Style Interior Design

Historic Mansion in England

Imagine stepping into a historic mansion in England that exudes the charm and solidity of Romanesque architecture. This grand structure boasts thick stone walls, rounded arches, small windows, stone vaulting, and barrel ceilings. The decorative features include intricate carvings and ornamental details that add a touch of elegance to the robust design. Walking through the mansion, you can't help but admire the craftsmanship and feel a sense of timeless grandeur.

Key Features:

  • Thick stone walls providing structural stability and a sense of permanence.
  • Rounded arches in doorways and windows, imparting strength and architectural beauty.
  • Small windows that let in diffused natural light, creating a serene ambiance.
  • Stone vaulting and barrel ceilings adding verticality and spaciousness.
  • Intricate carvings and decorative details enhancing the overall aesthetic.

Government Building in Germany

Now, picture a government building in Germany that stands as a testament to the ingenuity of Romanesque architecture. The interior is a visual feast with intricately carved stone reliefs, ornate vaulted ceilings, and a majestic ambiance that inspires awe. The thick walls and rounded arches provide both functional stability and aesthetic appeal, while the small windows and stone vaulting create an atmosphere of quiet grandeur.

Key Features:

  • Sturdy stone walls ensuring structural integrity.
  • Rounded arches adding a sense of robustness and permanence.
  • Small, narrow windows allowing soft, diffused light to fill the space.
  • Ornate stone vaulting and vaulted ceilings showcasing architectural brilliance.
  • Intricate carvings and sculptural reliefs adding a layer of historical richness.

Public Library in France

Step into a public library in France, where Romanesque design elements create an inviting and contemplative atmosphere. The thick stone walls and rounded arches provide a solid and comforting backdrop for the library's collection. Small windows allow natural light to filter in gently, while the stone vaulting and barrel ceilings lend an air of spaciousness and tranquility. The decorative capitals and sculptural reliefs tell stories of history and culture, making the library a treasure trove of architectural beauty.

Key Features:

  • Thick, robust stone walls contributing to the library's structural stability.
  • Rounded arches in doorways and passageways creating a sense of strength and elegance.
  • Small windows that illuminate the space with gentle, diffused light.
  • Stone vaulting and barrel ceilings adding height and grandeur.
  • Decorative capitals and sculptural reliefs depicting historical scenes.

Fun Fact

Did you know that Romanesque architecture was one of the first styles to extensively use stone vaulting? This innovation not only provided structural stability but also allowed for the creation of impressive interior spaces with intricate patterns and designs.


What is Romanesque architecture known for? Romanesque architecture is known for its thick walls, rounded arches, small windows, stone vaulting, and barrel ceilings. It often includes decorative elements like sculptural reliefs and painted frescoes.

Why were windows small in Romanesque buildings? Windows were small in Romanesque buildings to maintain structural integrity and because the technology of the time limited the size of windows that could be safely constructed.

What is the difference between groined and barrel arches? Groined arches intersect at right angles, creating a groin or edge, while barrel arches are continuous, semi-circular structures.

What materials were commonly used in Romanesque architecture? Common materials included stone, brick, and occasionally marble for decorative elements.

How did Romanesque architecture influence later styles? Romanesque architecture influenced later styles by introducing structural innovations like stone vaulting and architectural elements like rounded arches, which were further developed in Gothic architecture.

Explore Further

  • Architectural Restoration Techniques: Learn how ancient structures like Romanesque buildings are preserved and restored.
  • Cultural Heritage Preservation: Understand the importance of maintaining and protecting historical sites.
  • Medieval Art and Architecture: Discover the broader context of medieval artistic expression and its connection to architecture.

The Maxentius Basilica and these other examples of Romanesque interior design showcase the architectural genius of the Middle Ages, reflecting a blend of structural ingenuity and artistic beauty that continues to inspire awe and admiration.