Italy

Pompeii, an ancient Roman city near current-day Naples, was destroyed and buried in ash and pumice after the eruption of Mount Vesuvius in 79 AD. Approximately 2.5 million people visit Pompeii yearly.

Found in Rome, the Colosseum is also known as the Flavian Amphitheatre. The largest amphitheater in the world, it was built of concrete and stone from 70 to 80 AD.