Muralla de Zamora

Zamora, Spain, Spain

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Muralla de Zamora comprises three successive medieval enclosures encircling the historic core of Zamora in Castilla y León, Spain, originating from Roman-era fortifications and rebuilt starting in 893 under Alfonso III, with major expansions under Fernando I in the 11th century, the 13th century eastward, and late 14th century southward.

These robust stone walls, averaging 2-3 meters thick with gates like Puerta de Doña Urraca and Puerta del Obispo, protected the city during Reconquista sieges and later conflicts, linking to Zamora Castle for panoramic Duero River views. 

Though partially dismantled in the 19th century via the Madoz Law, surviving stretches highlight the city's "bien cercada" nickname and strategic frontier role.