Church of Nuestra Señora de la Asunción de Griñón Monument · Griñón, Comarca Sur, Madrid Its bell tower and ribbed vault point to 14th-century Mudejar work; inside, the standouts are an altarpiece with panels by the painter Juan Correa de Vivar and a 17th-century gadrooned font. Photo: Zarateman (CC0) What to see and do in Griñón