The story

Colosseum opens closed underground corridors for 15 centuries

One of Italy's main landmarks, the Colosseum, will open its underground corridors to the public for the first time. The network of tunnels and cells used to house animals, gladiators, slaves, and people thrown to lions and tigers for the entertainment of the public, which numbered 50,000.

Millions of tourists visit the Colosseum annually, but the underground areas were considered very fragile and were therefore closed to the public.

The project cost $ 28 million, and now the painstaking work of protecting fragile structures is coming to an end. New passages will allow visitors to navigate the ruins beyond the reach of Roman crowds.