Naples is the regional capital of Campania and the third-largest municipality in Italy after Rome and Milan. First settled by Greeks in the second millennium BCE, Naples is one of the oldest continuously inhabited urban areas in the world. Naples’ historic city centre is the largest in Europe and a UNESCO World Heritage Site, with a wide range of culturally and historically significant sites nearby, including the Palace of Caserta and the Roman ruins of Pompeiiand Herculaneum. Naples is also known for its natural beauties (Posillipo, Phlegraean Fields, Nisida, Vesuvius, etc.).