The Camino del Cid through the fortified town Activity · Retortillo de Soria, Tierras del Burgo, Soria Image of Retortillo de Soria, not of the place itself. The locality is one of the signposted stages of the itinerary that follows the steps of the Cantar through the lands of Soria and Guadalajara, among watchtowers, páramos and walled towns of the old front between Castile and al-Andalus. Photo: Rowanwindwhistler (CC BY-SA 3.0) What to see and do in Retortillo de Soria