Bridge of sillería sobre el río Carrión Monument · Guardo, Alto Carrión, Palencia Image of Guardo, not of the place itself. A five-arched ashlar bridge that crosses the river Carrión as it passes through the urban centre of Guardo and links the two banks beside the Fuentes Carrionas park and the well-known Paseo del Reloj. Photo: Alejandro Polanco (CC BY 3.0) What to see and do in Guardo