We recently published an article on a secret medieval tower in Palermo. The article does not mention that it is possible to visit this unique place if you stay at the bed and breakfast located there - though a link ad appears on the same page. This is operated by Count and Countess Federico. (Shown here is an arched two-light window and four loopholes on one side of the tower's exterior.)
Most of the tower is of late 12th-century construction - the Federicos have historical connections to Frederick II - but the lower part is actually a segment of a protective wall built along the Kemonia River by the Phoenicians and Carthaginians. The ambience of the small but comfortable apartments in the tower is typically medieval. While Sicily offers numerous accommodations in historic settings, Palazzo Federico is a unique example of this kind in the city of Palermo.