The famous amphitheater in Rome is the Colosseum, also known as the Flavian Amphitheatre. Completed in AD 80, this monumental structure could hold up to 80,000 spectators, making it the largest amphitheater of its time. The Colosseum was primarily used for gladiatorial contests and public spectacles, including mock sea battles, animal hunts, and executions. Its architectural grandeur, characterized by a complex system of vaults and arches, exemplifies ancient Roman engineering prowess. Today, the Colosseum is a UNESCO World Heritage Site and an iconic symbol of Rome, attracting millions of visitors each year who wish to witness its historical significance.