The city known for its ancient amphitheaters is Rome, located in Italy. Rome is renowned for its rich historical significance and architectural marvels, including the famous Colosseum, which is one of the largest amphitheaters ever built. Completed in AD 80, the Colosseum could seat thousands of spectators for various public spectacles, including gladiator contests. Rome's history, art, and culture attract millions of tourists eager to explore its ancient ruins and artistic treasures.