Sicily (Italian and Sicilian: Sicilia, [siˈtʃiːlja]) is the largest island in the Mediterranean Sea, comprising an autonomous region of Italy. Minor islands around it, such as the Aegadian Islands, Aeolian Islands, Pantelleria, Lampedusa are part of Sicily. Its official name is Regione Autonoma Siciliana (English: Sicilian Autonomous Region).
Sicily has a long history of foreign domination, from the Greeks to the Romans, Arabs, Normans, Catalans. The result is a mixed culture where every single domination left something to see, to taste, to hear.
Sicily is a huge island where every little city seem to have its own culture. You will find great variety of local specialities in all cities over the island.
What else ? They are proud people and most of them are a little bit conservative, but open-minded to visitors.