The Colosseo is the largest amphitheatre ever built in the Roman Empire. It is one of the greatest works of Roman architecture and Roman engineering. Occupying a site just east of the Roman Forum, its construction started between 70 and 72 AD under the emperor Vespasian and was completed in 80 AD under Titus.
Capable of seating 50,000 spectators, the Colosseo was used for gladiatorial contests and public spectacles, such as mock sea battles, 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 was later reused for such purposes as housing, workshops, quarters for a religious order, a fortress, a quarry, and a Christian shrine.
It has been estimated that about 500,000 people and over a million wild animals died in the Colosseo games.