The country with the famous landmark called the Colosseum is Italy. Located in the heart of Rome, the Colosseum is an ancient amphitheater and a symbol of Roman engineering and architecture. Completed in AD 80, it hosted various public spectacles, including gladiatorial contests and other entertainment events. Today, the Colosseum is a UNESCO World Heritage Site and a major tourist attraction, reflecting the grandeur of ancient Rome and its cultural significance in history.