Cittadella di Alessandria - Italian abandoned military fort from 1700

The Cittadella of Alessandria (Italian: Cittadella di Alessandria) is a star fort and citadel in the city of Alessandria, Italy. It was built in the 18th century by the Kingdom of Sardinia, and today it is one of the best preserved fortifications of that era. It is one of the few fortifications in Europe still in their original environment, since there are no buildings blocking the views of the ramparts, or a road that surrounds the ditches. On 10 March 1821, during the Piedmont insurrection, the blue, red