These rooms of the National Archaeological Museum house objects and paintings from the temple discovered at Pompeii. The focus is on three spaces, partially reconstructed here: the portico, the ekklesiasterion (where Isis's followers would gather) and the sacrarium (shrine where sacred objects were placed). The frescoes on the walls depict figs, grapes, geese and doves, elements related with the cult of the Egyptian goddess. The large panels illustrating sacred landscapes and scenes related to the myth of Io are particularly remarkable.