The bañuelo
Located in the carrera del Darro, the Arab baths of El Bañuelo is a building, declared of cultural interest.
The Bañuelo was constructed in XIth century, in the epoch of the king Zirí Badis and from him they emphasize its beautiful vaults with skylights which function was to facilitate the ventilation and to regulate the air conditioning of the rooms.
http://www.lovegranada.com/monuments/banuelo/