Church of San Juan el Real de Llamas Monument · Aller, Caudal, Asturias An example of 12th-century rural Romanesque built in the village of Llamas, in the upper Aller valley. It has been a Monumento Histórico-Artístico (Spain's heritage designation in force between 1931 and 1985) since 1963 and is, along with San Vicente de Serrapio, the main Romanesque landmark in the municipality. Photo: AmebaEnSalsa (CC BY-SA 3.0 es) What to see and do in Aller