CISA is the former summer residence of king William II the Good, located in the Western part of Palermo. Today, this luxurious medieval Villa is considered a monument of the Arab-Norman style and model of the influence of Moorish culture on Sicily.

Build Zisu started the king of Sicily, William I in the 12th century, however, he never managed to see the fruits of your labor – the first occupant of the Palace was his son, king William II the Good, who loved the Oriental way of life and Eastern architecture. CISA became part of his huge hunting areas, which were also built the Palace of the cube in the Arab-Norman style and several other buildings. And the name of the residence according to historical sources comes from the Arabic word al-Aziz, which means "noble, glorious". This word can be seen today at the entrance to Zizou usually that was done in all the Islamic structures of the 12-13th centuries.

In the 14th century from the roof of the Palace was partially erased inscription in Arabic – instead of on the perimeter were installed jags. But three centuries later, having passed into the possession of Giovanni di Sandoval, CISA faced even more serious reconstruction: over the entrance was placed a marble emblem depicting two lions, changed the layout of several rooms, built new stairs and added new Windows. Since 1808, and until the mid-20th century, the Palace was owned by the count's family Notabartolo di Chiara, and then was purchased by the government of the Autonomous region of Sicily. In the 1970s and 1980s, CISA was restored (the Northern part was demolished and rebuilt in its original borders) and turned into a Museum today inside you can see the works of Islamic art and various artifacts collected around the coast of the Mediterranean sea. Special attention of tourists is the main hall, decorated with mosaics of incredible beauty. Once it even stood a fountain, but was later dismantled.