The slate dovecotes Curiosity · Palacios de Sanabria, Sanabria, Zamora Image of Palacios de Sanabria, not of the place itself. Unlike the mud dovecotes of Tierra de Campos, those of Palacios are raised in dark stone and roofed with slate slabs, adapting a building type from the meseta to the Sanabria mountains. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Palacios de Sanabria