Another curious thing to see in Olivenza are the Portuguese tiles at the Chapel of the Casa de la Misericordia (Monday-Friday, 10.00-13.30; admission free) which is tiled to the ceiling with biblical scenes full of naive anachronisms.The church of the Hermandad de la Misericordia (Brotherhood of Mercy) reached its present appearance in 1732, although its hospital has gone through countless remodellings. The construction of the convent of Clarisas (Nuns of the Order of St. Clare), also known as the convent of San Juan de Dios, took almost a century (1556-1631)