Bridge of los Ingleses de Sama Monument · Langreo, Nalón, Asturias One of the three historic bridges that cross the Nalón on its passage through Sama: it was built in 1895 and shares the riverbed with the Puente Viejo, of 1865, and that of La Maquinilla, of about 1890, witnesses in iron and ashlar to industrial Langreo. Photo: Yandrak (CC BY-SA 4.0) What to see and do in Langreo