The Citadel of Museums is situated just north of Castello, and since the major works carried out by military architects Rocco Cappellino and the Palearo brothers in the 16th century, it is included within perimeter of the fortification system of the city, subsequently extended and improved by the Savoys during the 18th century. It was principally used as an arsenal and foundry, as well as a jail and subsequently barracks. Heavily damaged in WWII, it was later abandoned and only in the 1960s it was destined to host a number of museums and areas for temporary exhibitions. Visitors can enjoy a cafe with a pleasant terrace and a somewhat limited selection of snacks. The area also has amazing views of the gulf of Cagliari.