In the 1970s artist Aligi Sassu wanted to honor his Ozierese origins by donating a large fresco to the city. The work was originally a mural painting, the largest in Sardinia for a long time, which over the decades deteriorated due to weathering and was therefore recovered in 1998 through a mosaic intervention by specialized artisans indicated by the artist. Inspired by the example of Mexican muralism, as much in its compositional layout as in its didactic-social intent, the Prometheus by Aligi Sassu, among the greatest exponents of twentieth-century Italian art, represents a unicum in the Sardinian panorama. With it Sassu infuses the history of Sardinia with a sense of universality. The work features Prometheus, the titan god of Greek mythology who bestows fire and wisdom on men who create civilization, narrated by the artist with images from the history of Ozieri. Depicted are, in addition to the Mother Goddess, ceramics from the Ozieri Culture, elements from the Nuragic period, and important Ozierese figures such as Leonardo Tola, Francesco Ignazio Mannu, Gavino Cocco, Matteo Maria Madao, and Salvatore Saba.