Castello di Palazzolo Acreide o Rocca di Castelmezzano
Originally from the early 800s, today this castle is mostly in ruins, but if you follow the well-constructed paths that wind through it, you can still pass through some rooms and doorways and get a sense of what the castle once looked like. The views are lovely near the castle walls that extend above the cliffs, and you can see how castle defenders watched for enemies here. Access to the ruins is wheelchair-friendly, but some climbing of stairs is required to complete the tour of the entire site.