Castel Sant'Angelo

The first fortification to be built on Monte Sant'Angelo was a watchtower, which was constructed between 1583 and 1585 on the orders of Viceroy Marcantonio Colonna. The tower was designed by the military engineer Camillo Camilliani.
In 1615, Hernando Petigno, the general commander of the Royal Cavalry of Sicily and Military Governor of Syracuse, began building a fort on the site, incorporating the tower as the fort's keep. Construction was halted, but it was resumed in 1636 and completed in 1640 under the direction of Serpione Cottone, Marquis d'Altamura.

The fort never fired its guns in anger, and was decommissioned in the 19th century. It was a telegraph station between 1849 and 1856. In the early 20th century, it became a lighthouse. It was severely damaged during the Allied invasion of Sicily on 10 July 1943, when it was bombarded by USS Brooklyn and USS Buck. The damaged parts of the fort were later repaired.
The lighthouse in Castel Sant'Angelo closed in 1965, and the fort was abandoned. It was declared a historic monument on 8 July 1969, and it was restored in the 1980s.
Today, the fort is in good condition and is open to the public. There are plans to turn it into a museum.

The fort has a triangular shape, with the 16th-century tower serving as its keep. The fort is built in the Baroque style, and it includes a central courtyard, barracks, stables and warehouses. Access to the fort was only allowed through a drawbridge over a moat. The fort also contained a chapel, but this no longer exists.

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