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Protesters hold a large Palestinian flag in front of the Colosseum during a protest against Israel's attacks on Gaza, in Rome January 17, 2009. REUTERS/Alessia Pierdomenico

Colosseum restoration underway

A long-delayed restoration of the Colosseum's only intact internal passageway has yielded ancient traces of red, black, green and blue frescoes — as well as graffiti

and drawings of phallic symbols — indicating that the arena where

gladiators fought was far more colorful than previously thought.