The House with Chimaeras – also called the Gorodetsky house, after its creator – is mainly used by the government but even though it is closed to visitors, the facade alone makes it worth the trip: its exterior is generously decorated with sculptures of various animals and even sea monsters, and it gives the place a very eerie, yet enticing vibe.

Zisa Palace is a 12th century castle built for King William I of Sicily. Its name derives from the Arabic word "al-Aziz", which means splendid. The original Norman building underwent some changes during the years, especially with the decorations added during the Baroque period. The Islamic inspiration for the architecture is clearly visible in the decorations of the vestibule, where Arabic vaults and columns are interposed by Baroque frescoes and marble decorations. Today, the castle houses a museum of Islamic art.

One of, if not the most important centres for justice and peace in the world, Peace Palace comprises the United Nations International Court of Justice, the Permanent Court of Arbitration, the Hague Academy of International Law and the Peace Palace Library. Although this is a working palace, which means most areas are closed to the public, there is, however, a visitors centre where those interested can learn more about the history of the palace and the role it plays today in international justice via a free audio tour. On rare occasions, the palace opens its doors to the public for guided tours, but it is advisable to check well in advance if any dates are available as they are few and far between. In any case, the impressive surrounding gardens and Neo-Renaissance buildings are definitely a must-see.

Housed in the Archbishop's Palace, the Museo Diocesano di Palermo boasts an impressive collection of sculptures from the 15th to 18th centuries. It also displays interesting artworks, such as religious silverware and textiles, frescoes and Italian and Flemish paintings from the 16th to 19th centuries.