The Sierra de Segura

Parque Natural Sierras de Cazorla, Segura y las Villas is a UNESCO Biosphere Reserve, covering an area of over 14,000 hectares. The city of Segura de la Sierra with its 11th-century castle, the town of La Iruela with the ruins of medieval fortifications, the town of Hornos with its Moorish fortress and the mountain town of Cazorla with picturesque streets and the remains of the Church of St. Maria.