Español: Pozo en el castillo de Portillo, localidad de Portillo (Valladolid, España). Está en el centro del patio de armas y tiene una profundidad de 30 metros. Se accede por una escalera de caracol que subsiste, cuyo mantenimiento y reparación han sido hechos a finales del siglo XX.
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{{Information |Description ={{es|1=Pozo en el castillo de Portillo, localidad de Portillo (Valladolid, España). Está en el centro del patio de armas y tiene una profundidad de 30 metros. Se accede por una escalera de caracol que subsiste, cuyo manten