Officials unveiled the discoveries Friday and said the passageway – between the second and third levels of the first century Colosseum – would open to the public starting this summer, after the 80,000 euro restoration is completed.
The frescoes were hidden under decades of calcified rock and grime, and were revealed during a cleaning and restoration project over the last two months. The traces confirmed that while the Colosseum today is a fairly monochrome gray travertine rock, red brick and moss-covered marble, in its day its interior halls were a rich and expensive Technicolor.
"We're used to thinking that during excavations, archaeological surprises are a risk for builders and for the city's development," Rome archaeological heritage superintendent Mariarosaria Barbera said. "But here is a beautiful archaeological surprise ... a monument that has been studied and known and appreciated across the world, yet still provides surprises."
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