The Archaeological Park of Baiae (Parco Archeologico di Baia) is around 20 kilometers west of Naples. In Ancient Rome, Baiae was an opulent beach resort for Roman emperors and elites, before a local volcanic phenomenon called bradyseism slowly submerged half of the city beneath the sea. Today, the site is uniquely split into a land-based archaeological complex and a protected underwater marine park. Photographs (c) Essential History.
