The Colosseum is an oval amphitheatre in the centre of the city of Rome, Italy. Built of travertine, tuff, and brick-faced concrete, it is the largest amphitheatre ever built. Construction began under the emperor Vespasian in AD 72, and was completed in AD 80 under his successor and heir Titus.
The Colosseum was estimated to hold an audience of some 65,000. It was used for gladiatorial contests and public spectacles, filled with animal hunts, executions, re-enactments of famous battles, and dramas based on Classical mythology. The building ceased to be used for entertainment in the early medieval era.
It is one of Rome's most popular tourist attractions and also has links to the Roman Catholic Church, as each Good Friday the Pope leads a torchlit "Way of the Cross" procession that starts in the area around the Colosseum. The Colosseum is also depicted on the Italian version of the five-cent euro coin.