
Cagliari is the capital of the island of Sardinia, a region of Italy. Cagliari's Sardinian name Casteddu literally means castle.
The old part of the city lies on top of a hill, with a wonderful view of the Gulf of Cagliari (also known as Angels Gulf). Most of its city walls are intact, and feature the two 13th century white lime-stone towers, St. Pancras Tower and the Elephant Tower. The local white lime-stone was also used to build the walls of the city and many buildings. D. H. Lawrence, in his lively memoir of a voyage to Sardinia, Sea and Sardinia, undertaken in January 1921, described the effect of the warm Mediterranean sun-light on the white lime-stone city and compared Cagliari to a "white Jerusalem". The city is said to be built on seven hills.
The Cathedral was restored in the 1930s turning the former Baroque façade into a Medieval Pisan style façade, more akin to the original appearance of the church. The bell tower is original. The interior has a nave and two aisles, with a pulpit sculpted for the Cathedral of Pisa but later donated to Cagliari. The crypt houses the remains of martyrs found in the Basilica of San Saturno. Near the Cathedral is the palace of the Provincial Government. In Castello is also the Sardinian Archaeological Museum, the biggest and most important regarding the prehistoric Nuragic civilisation of Sardinia. Finally, Castello hosts many craftsmen workshops in its tightened and scenic lanes.
The Basilica di San Saturnino is one of the most important Palaeo-Christian monuments in Sardinia. Dedicated to the martyr killed under Diocletian's reign, Saturninus of Cagliari, it was built in the 5th century. Of the original building the central part remain and the dome, to which two armes was added. A Palaeo-Christian crypt is also under the church of San Lucifero, dedicated to Saint Lucifer, a bishop of the city. This has a Baroque façade with ancient columns and sculpted parts, some of which found in the nearby necropolis.