Even though a bit out of the way and easy to miss in the grand tour of Sicily, you need to make your way to Piazza Armerina to see the Villa Romana del Casale. The mosaics there are everything the travel books say about them and more. After seeing many old Greek sites scattered throughout Sicily, this Roman villa dating to around 400 AD offers incredible insight into what life was like for highly privileged Romans at that time. The mosaics are fascinating, detailed, artistically amazing, and full of stories. You won't regret it.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.