The Castle of Hinojosa de la Sierra Monument · El Royo, El Valle y La Vega Cintora, Soria A fifteenth-century fortress of rectangular plan, with a double trapezoidal enclosure, round towers at the corners and a keep of several floors lit by arrow slits; it stands above the hamlet of Hinojosa, in the municipal district of El Royo. Photo: Miguel Ángel García. from Ólvega., España (CC BY 2.0) What to see and do in El Royo