During the height of the Roman Empire, one of the most significant structures constructed was the Colosseum, also known as the Flavian Amphitheatre. Begun in AD 70-72 under Emperor Vespasian and completed in AD 80 under his successor, Titus, the Colosseum was an iconic symbol of Roman engineering and architecture. It could hold tens of thousands of spectators and was used for various public spectacles, including gladiatorial contests and public events. The Colosseum remains a powerful representation of Roman culture, power, and the social dynamics of ancient Rome. It continues to be an important historical and architectural landmark today.