The White Towns of Andalusia, or Pueblos Blancos, are a series of whitewashed towns and large villages in the northern part of the provinces of Cádiz and Málaga in southern Spain, mostly within the Sierra de Grazalema Natural Park. History and description The area has been settled since prehistoric times, and some of the local caves have ancient rock paintings. Iberian people, Roman, Visigoths and Berbers are some of the settlers before the Modern Era that left their print. It was precisely during Roman times that whitewashing was introduced, but it was later during the pandemic plague waves during 14th and later centuries when whitewashing exterior but also interior walls of houses and churches - the latter often visited by disease-affected inhabitants - became predominant. These villages punctuate or are close to natural parks in the south of the Iberian Peninsula, including Sierra de Grazalema Natural Park that is listed as a biosphere reserve and is the highest rainfall area in Spain, or Los Alcornocales Natural Park with its cork oak protected landscape. All of the villages are characterised by whitewashed walls and red or brown tiled roofs. They also commonly present narrow alleyways, steep earrings, lookouts, and town squares with a church and town hall. Often local institutions manage archeological museums with Roman or Arab artifacts, as well as others dedicated to local customs, crafts or trades. Villages and routes There are proposed routes to visit some of the villages. Of interest are the ones close to Ronda (province of Málaga) and Arcos de la Frontera (province of Cadiz). Ronda's White Towns route: Ronda, including the ancient Roman settlement of Acinipo archeological site. Setenil de las Bodegas, some parts of the village use the rocky mountains as walls and roof of the houses. Torre Alháquime Olvera Algodonales, 16th-century town with some Roman ruins Zahara de la Sierra, it is in the Sierra de Grazalema Natural Park next to a reservoir. Grazalema Benaocaz, small village with a fortress Arcos de la Frontera's White Towns route: Alcalá de los Gazules Medina Sidonia, including the Roman settlement of Asido. Arcos de La Frontera, perched on a cliff with Baroque churches. Bornos and Villamartín - reservoir, Roman ruins Ubrique, largest of the White Towns , high quality leather crafts among other features. Casares Jimena de la Frontera Castellar de la Frontera Other villages and places to visit include: Mijas Pueblo - Burro Taxi,