Ancient Rome’s biggest fresco and mosaic unveiled three decades after discovery

The works were opening to the public for the first time (Andrew Medichini/AP)

Authorities have unveiled what is believed to be the largest fresco and mosaic complex of ancient Rome, a 1st century AD depiction of a maritime city in what became the largest bath complex in the world.

Mayor Roberto Gualtieri presented the recently restored Painted City fresco and Great Mosaic that were discovered in an underground gallery during excavations in the 1990s of the Baths of Trajan on the Oppio hill near the Colosseum.