Cittadella of Alessandria

The Cittadella of Alessandria is a remarkably well-preserved star fort located in the city of Alessandria, Italy, situated on the north-west bank of the Tanaro River. Constructed between 1732 and 1808 by the Kingdom of Sardinia, this massive military installation was built using stone, brick, earthworks, and concrete to serve as a strategic border defense. Its architectural significance lies in its intact condition and unique setting; it remains one of the few European fortifications still surrounded by its original environment, featuring unobstructed views of its ramparts and ditches without modern buildings or roads interfering with its defensive perimeter.

Historically, the fortress played a pivotal role in numerous conflicts, including the War of the Austrian Succession, the Napoleonic Italian Campaigns, the Risorgimento, and World War II. It served as a garrison for various forces, ranging from the Royal Sardinian Army to the French and Austrian armies. A particularly notable event occurred on March 10, 1821, during the Piedmont insurrection, when the Carbonari tricolour flag was raised on its bastions for the first time in Italian history. This act marked a significant moment in the nation's journey toward unification. The site has been on Italy's tentative list for UNESCO World Heritage status since 2006 due to its exceptional preservation and historical value.

Today, the Cittadella is owned by the Italian State Demanio Agency and managed by the Ministry of Culture. Although military use ceased in 2007, the structure remains in excellent condition and is open to the public. Visitors can explore the extensive grounds, including the historic armoury, to witness one of the best examples of 18th-century military engineering in Europe. Its survival as a complete system within its original landscape makes it a unique monument for understanding the geopolitical and military evolution of the Piedmont region over three centuries.