Rome opens largest ancient Roman mosaic to visitors for the first time

Rome on Tuesday opened to the public what archaeologists believe is the largest wall mosaic and fresco complex ever discovered from the ancient Roman world, a first-century A.D. depiction of a maritime city hidden for nearly 2,000 years beneath the Baths of Trajan on the Oppian Hill, steps from the Colosseum.kuwaittimes+1

The unveiling caps years of excavation and restoration work on the "Great Mosaic" and an accompanying fresco known as "The Painted City," both found in an underground gallery during digs that began in the 1990s. Mayor Roberto Gualtieri called the works "truly unique in the world, both from the point of view of artistic beauty and the historic and documental importance".wsvn+1

A Mosaic Still Being Unearthed

The Great Mosaic rises approximately 15 meters and spans four levels of decoration, featuring life-size figures, ornate columns, and theatrical scenes rendered in blue, white, and terracotta tiles. At its base sits a detailed aerial portrayal of a fortified port city, complete with stone walls, towers, and a harbor gate. Its upper registers depict mythological and human figures, including centaurs, poets, and female muses.gbnews+1

Archaeologist Francesco Pacetti said the mosaic's full extent remains unknown. "We think it's the biggest wall mosaic ever found in the Roman world, and we are still digging to find where it stops," he said. Whether the depicted city is real or imagined is also unresolved. "It might be Ostia," Pacetti suggested, referring to ancient Rome's port, "but we just don't know".greekreporter+1

Buried by an Emperor's Ambition

Researchers believe the decorated spaces may have belonged to an elite private residence or formed part of Emperor Nero's Domus Aurea, the palace built after the Great Fire of Rome in A.D. 64. The artworks were entombed in A.D. 109 when Emperor Trajan commandeered the site for his vast public bathhouse, then the largest in the Roman world at roughly 60,000 square meters.aman-alliance+3

Nearby, The Painted City fresco covers roughly 10 square meters and shows a walled settlement from above, its urban landscape detailed enough to distinguish individual window frames, a theater, a temple, and residential blocks. Rome's cultural superintendent, Claudio Parisi Presicce, described the discoveries as "exceptional" and noted that if the fresco depicts a real location, the city "must have been particularly well-known".wsvn+2

Controlled Access Begins This Weekend

A trial opening to the public is scheduled for Saturday and Saturday, September 12–13, with free guided tours requiring reservations. From October 2, the site will open Friday through Sunday with six daily time slots and a maximum of 15 visitors per group. Conservation experts will monitor humidity inside the underground gallery before broader access is permitted.aman-alliance+3

"We are giving this unique wonder back to the city," Gualtieri said.gbnews