Arab architectural details, Muquarnas, in the Interior
The edifice has a rectangular plan, with massive forms. The four façades are marked by blind arcades, small windows, and niches. The name Cuba derives in fact from its approximately cubical form. The famous ItalianMiddle Ages author Boccaccio was impressed by the Cuba and set here one of the novellas included in the Decameron.
The Cubola or Little Cuba is another edifice built by William II for his park, in smaller dimensions. The most striking feature of the Cubola is the little hemi-spherical cupola.