Huge 32-foot Roman Mosaic Discovered Near Colosseum After 2000 Years

A monumental Roman wall mosaic has finally been shown to the public after lying hidden for nearly two millennia. The discovery sits just beneath Oppian Hill, right next to the Colosseum in Rome. This incredible piece of art rises more than 32 feet high and stretches along a buried wall spanning 52 feet.

Though time and damage have claimed parts of the work, enough remains to see life-size figures relaxing among pillars and columns. The scene includes a bearded philosopher, a centaur, and a young poet being awarded a laurel crown for his efforts. Experts are still digging deeper and finding new details, including an architectural plan for a port city that has left specialists baffled.

Antonio Plescia, the curator of archaeology for the Capitoline Superintendency for Cultural Heritage, spoke to the Daily Mail about the find. He called it the largest Roman wall mosaic ever found. The piece is valuable not just because of its size and artistic quality but also due to the subjects shown. It might even hold a rare image of Emperor Claudius's port near Rome.

Archaeologists believe this stunning work dates to the first century AD, a time when the Roman Empire was at the peak of its power and wealth. The mosaic could have decorated a private home or the Domus Aurea, the massive palace complex built by Emperor Nero. That structure went up on land cleared after the Great Fire of Rome in 64 AD. Almost three-quarters of the city burned down over nine days.

Nero was often accused of starting the fire to make room for his opulent palace, but modern experts say this is unlikely. After Nero died, the Domus Aurea became an embarrassing symbol of his short and cruel rule. Within a decade, people stripped it of its jewels, marble, and ivory. The entire structure ended up buried underground in 109 AD when Emperor Trajan chose the spot for a colossal public bath covering 15 acres. You can see the foundations of that bath complex poking through the ceiling of the vast subterranean gallery today.

Despite the artwork's immense size, experts think it belongs to an even larger structure that has not yet been fully excavated. The Capitoline Superintendency for Cultural Heritage says archaeologists found remains of a covering made from large marble slabs deeper beneath the mosaic. They also identified a seven-foot-tall niche decorated with marble. This pushes the estimated height of the complex to 39 feet, suggesting there is much more mosaic waiting to be uncovered.

The site is now open for the very first time to tour groups entering the gallery meters below the ruins of the bath house and Colosseum above. Roberto Gualtieri, mayor of Rome, told reporters as he inaugurated the place on Tuesday. He said they are giving this unique wonder back to the city.

The mosaic and its mysterious port city are not the only Roman architectural puzzles hidden underground. The subterranean complex also houses what archaeologists call the Painted City fresco. They first unearthed it during the 1990s. The fresco shows a view of a city with high walls, towers, gates, a theatre, and statues by the sea.

The artwork is so finely detailed that you can clearly see individual windows in houses. Archaeologists still cannot decide whether these illustrations show a real city or just an artistic fantasy. But the incredible detail and expense required to create them suggest these scenes were extremely important to the Romans.