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Hypogeum of the Crystallines
Hypogeum of the Crystallines is an ancient cemetery near Naples. The site dates back 2,300 years – before the Romans – to ancient Greeks who dubbed the city Neapolis (now modern-day Naples). Discovered in 1889 and now open to the public, visitors can explore the ancient tombs hidden under the city's streets. The site boasts burial chambers, ancient frescos, and Greek sculptures that look just as they did thousands of years ago.