The 2004 Master Plan Curiosity · San Cebrián de Castro, Tierra del Pan, Zamora Image of San Cebrián de Castro, not of the place itself. In 2004 a master plan was completed with an architectural and archaeological study of the complex, which occupies 4,709 meters of extension; the castle had been protected by the castles decree of April 1949. Photo: Enrique.garzo.cano (CC BY-SA 4.0) What to see and do in San Cebrián de Castro