Aracena is in the north of Huelva province, in the mountain range Sierra de Aracena and Picos de Aroche.
Architecturally, it is a typical Andalusian village, with whitewashed houses contrasting against the green landscape of the mountains. Its town centre, an official Property of Cultural Interest, and the Gruta de las Maravillas cave are its main tourist attractions. The Gruta de las Maravillas (las Maravillas grotto) is one of the largest caves in Spain, and is amazingly beautiful inside. It includes twelve underground chambers, six lakes, and countless stalactites and stalagmites. The built heritage of Aracena is notable for its fortifications, including the castle, and for the church of Nuestra Señora del Mayor Dolor. There is also an interesting outdoor Museum of Contemporary Art.