Castillo de Villa del Río Monument · Villa del Río, Alto Guadalquivir, Córdoba Fortress declared a protected monument in 1985. The town also preserves historic bridges over the río Salado and the Arroyo del Diablo, protected, according to Wikipedia, since 1931. 1985 (castillo); 1931 (puentes) Photo: CFA1877 (CC BY-SA 4.0) What to see and do in Villa del Río