Colosseum is a huge amphitheatre built in Rome. The work of building the amphitheatre began in AD792 under Vespasian, and inaugurated in AD 780 by Titus. The Colosseum could not hold more than 80,000 spectators. Public sport included the killing of early Christians at the theatre by the lions and gladiators. The Colosseum is now in ruins.
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The Colosseum or Roman Coliseum, originally the Flavian Amphitheatre (Latin: Amphitheatrum Flavium, Italian Anfiteatro Flavio or Colosseo), is an elliptical amphitheatre in the center of the city of Rome, Italy, the largest ever built in the Roman Empire. It is one of the greatest works of Roman architecture and Roman engineering.