Interior view
by ALESSI, Galeazzo, Photo
The model for the church was clearly derived from Bramante’s work in Rome. The plan of the building is centralized, consisting of a Greek cross set within a square, with a central dome and smaller domes over the arms of the cross and four bell-towers emphasizing the corners of the square. Deriving from the same Roman background are the powerful, solid pillars and the coffered vaults, where the contrast of light and shade is brought out by the white plaster walls.
The photo shows the interior of the central dome.