Romanesque remains of Santa Cruz Curiosity · Serón de Nágima, Las Vicarías, Soria Image of Serón de Nágima, not of the place itself. In the old cemetery of Serón survive the remains of the church of Santa Cruz, with a semicircular Romanesque apse that documents a church much earlier than the late Gothic one of Nuestra Señora del Mercado. Photo: Dgarcia29 (CC BY-SA 3.0) What to see and do in Serón de Nágima