I love the wonderfully bizarre Atelier Sul Mare art hotel in Castel di Tusa: each room was designed by a different artist. If you're in the area you should spend a half-day in the charming village of Cefalu and climb La Rocca: the view is worth the work.
Atelier Sul Mare: www.ateliersulmare.it/applicazione/index_asm.asp?lang=en
My Sicily trip report: www.travelmusings.net/sicily-2009/
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