Church of Nuestra Señora de la Antigua de Polentinos Monument · Polentinos, Montaña Palentina, Palencia A Gothic church with a round-arched doorway, covered with ribbed vaults and with several altarpieces inside; it is the main building of one of the most isolated hamlets of the upper Pisuerga valley. Photo: Rodelar (CC BY-SA 4.0) What to see and do in Polentinos