The Castello Aragonese stands on an islet of trachytic rock linked to the East side of the island of Ischia by a bridge of 220m long. It is 113 m high under the sea level and stretches on 56.000 square meters. It’s reachable by a mule track or a modern elevator built at the end of 1970s.
From the principal street, there are other ones more small to link builds and gardens of the fortress. The elevator is 60m under the sea level and its way is dug into the rock. The build consists of lands and ruins. So evident in the representation of Castello Aragonese is the royal residence image, called Maschio (which can not be visited) and placed on the highest point to the the North East side and the cupola of the church of Immacolata, central counterpoint throughout the islet. Important passage between the rocky ribs and the built up area is the fortification around the castle.