5The Colosseum, Italy
Rome’s Colosseum is one of the most iconic symbols of the ancient Roman Empire and a masterpiece of Roman engineering. Completed in AD 80, this massive amphitheater could hold up to 80,000 spectators and was used for gladiatorial contests, animal hunts, and public spectacles. The Colosseum’s imposing structure, with its tiered arches and towering walls, has remained remarkably well-preserved despite centuries of natural disasters and human interference. The beauty of the Colosseum lies not only in its grand scale but also in the intricate details of its design, which reflect the skill and innovation of Roman architects. Today, the Colosseum stands as a testament to the glory of ancient Rome and continues to be one of the most visited monuments in the world.