Tower of Sandiás Monument · Sandiás, Limia, Ourense Raised between the 11th and 12th centuries on an isolated hill to watch over the Lagoa de Antela, it was attacked in 1368 by the Duke of Lancaster and later burnt by the irmandiños; of the castle only the tower remains, with walls almost four metres thick. Photo: David Perez (CC BY 4.0) What to see and do in Sandiás