It is a tower inserted in the northern section of the city walls, very close to the Puerta de la Macarena. It is made of mud and brick, with an irregular octagonal plan. It is two stories high, both vaulted. when losing
It is dated between the 12th and 13th centuries. Originally it was an Almoravid tower with a rectangular floor plan, surrounded by the new, larger tower with an octagonal floor plan in the Almohad period.
Losing its defensive use, it was frequently used as a place of refuge for the homeless. It has also housed numerous legends and fantastic stories, such as those of the goblins Rascarrabia and Narilargo, or that of Tía Tomasa. It is said of the latter that she was an old woman who lived in the tower at the end of the 19th century. It was said of her that she kidnapped children and locked them in the tower. In fact, the tower came to be known as 'aunt Tomasa's tower'.