The walled precinct of Rello Monument · Rello, Berlanga, Soria Image of Rello, not of the place itself. The village preserves intact its belt of medieval walls set on a limestone cliff, with a castle and tower at one end; the ensemble was declared a bien de interés cultural on 8 November 2001. Photo: PePeEfe (CC BY-SA 3.0) What to see and do in Rello