Thirty-three years ago today, on September 5, 1992 (August 9, 1992 in the lunar calendar), Rome announced that it would renovate the Colosseum. Cicini, the director general of the Italian Ministry of Cultural Heritage, announced that the renovation of the Colosseum began in September this year. Built in 70-82 AD, the Colosseum is a symbol of the city of Rome, and its "health" has been seriously "deteriorated" by long-term rain and sun exposure and vibration and pollution caused by traffic. Cicini announced that the Italian Ministry of Cultural Heritage and the Bank of Rome have signed an agreement on the renovation of the Colosseum, and the Bank of Rome will provide 40 billion lira (about 36 million US dollars) for the first phase of the renovation project. The construction period is expected to be 4 years. The renovation work mainly involves waterproofing the Colosseum, restoring the drainage system, removing dirt from the walls, and repairing the long-collapsed middle ground of the Colosseum to recreate the landscape of the year. The entire renovation project will be carried out in zones without affecting visitors.