The Palermo cathedral is located along Vittorio Emanuele street. What is interesting about it is the mix of architectural styles in which it was built. Construction started in 1185 in the Arab-Norman style typical of Sicily on the site of an earlier Byzantine basilica. Over the centuries additions, alterations and restorations were made in different architectural styles. As a result the cathedral has a quite unusual shape and outline. The interior is decorated primarily in Baroque style.