Chestnut tree of Souto da Ribeira Nature · A Mezquita, Viana, Ourense Image of A Mezquita, not of the place itself. A monumental chestnut tree some twenty-five metres tall and close to five hundred years old, a survivor of the chestnut groves that for centuries sustained the municipality's farming and livestock economy. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in A Mezquita