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Iglesias City Walls, Iglesias, Sardinia
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Pisan walls surround the city's historic centre, following its irregular outline and using its incline with the Castle of Salvaterra. Although urban expansion led to the incorporation of several stretches of wall into private homes, the remnants retain the features of medieval military fortifications: blind façades of mixed stones arranged in horizontal courses to create an uneven mass, providing resistance to attack. With 23 towers, the walls could be passed through four gateways: Porta Maestra, Porta Castello, Porta Sant Antonio and Porta Nuova.
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