Calcination kilns of Vilaoudriz Monument · A Pontenova, Mariña Oriental, Lugo Five kilns built by the Sociedad Minera de Villaodrid between 1902 and 1925 to calcine the iron before exporting it; they were built with brick brought from the Sargadelos factory and were recovered as industrial heritage around 1989. Photo: Xabier Rosas (CC BY-SA 3.0) What to see and do in A Pontenova