Considering the Torreata Residence in Palermo?
A VT member wrote the following comment about visiting Palermo:
La Cuba fortress by extrajoce
This fortress is a brilliant illustration of the Norman power, which they yielded from this once superb capital. The visit inside offers interesting information and shows the talent of the architects, along with giving a good idea of the medieval life of the time. Located in the north of the city's center, it may seem a bit hard to find but it definitely worth looking for.