Known for its dramatic setting, The Aragonese Castle is in the Gulf of Naples, Italy. The 5th century structure perches on a small rocky island that's connected by a causeway to the larger island of Ischia.
Today, it's privately owned and entrance fees help towards its upkeep and maintenance. There is plenty to see here, including the centuries old walls and towers, the cellars and millstone which was once used for making wine, and the 12th century Church of the Madonna, with its restored frescoes.
One highlight though is the spectacular views out to sea and over Ischia, whether from the terraces or the inviting café.