The Pedra Cuberta dolmen Nature · Vimianzo, Terra de Soneira, A Coruña Megalithic tomb in the parish of Treos, in Vimianzo, with an entrance passage 6.6 metres long and almost two metres high, which is missing the chamber's covering slab. On its orthostats is preserved a painting in red and black on a white background, with geometric motifs, wavy lines, concentric circles and triangles arranged in three horizontal bands, as in the Dombate dolmen, covering the entire monument, passage and chamber. The German archaeologist Georg Leisner made this decoration known in 1934, although in 1997 the deterioration of the images was denounced due to the administrations' lack of interest. It was declared Bien de Interés Cultural (Spain's highest level of heritage protection) in April 2011 and is one of the best-preserved dolmens in a concello that also contains the Casota de Freáns and the Arca da Piosa. Photo: Javier Pais (CC BY 2.0) What to see and do in Vimianzo