7The Colosseum, Italy

An enduring symbol of ancient Rome, the Colosseum is a monumental amphitheater that once hosted gladiatorial contests, public spectacles, and theatrical performances.

Completed in 80 AD, it could hold up to 80,000 spectators. The Colosseum’s architecture, with its complex system of vaults and arches, remains a marvel of engineering. Visiting this iconic structure offers insight into the grandeur and brutality of the Roman Empire.

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