Palazzo Aragonese or Compagna is a significant monument in Palma Campania. It was built for Alfonso I of Aragon at the end of the fifteenth century as a palace of delight and hunting lodge, and enlarged in the seventeenth and eighteenth centuries. The mansion owes its name to its last owners: the Compagna family. From the outside, the palace looks elegant, with beautiful windows with piperno frame (lava stone, soft). On the second floor windows and balconies alternate, and on the upper floor there are round-arched windows. The access to the main door, on which stands out the marble coat of arms of the Caracciolo family, who owned the building, is preceded by a double limestone ramp.