The plan is a perfect square with a smaller square scarsella or altar on the south side. The scarsella is axially positioned in the wall, and connected to the main space by an arched opening. The interior of the main space is articulated by a rhythmic system of pilasters, arches that emphasize the space's geometric unity.
The plan is a flawless square with a smaller square altar or shrine on the south side. The altar is centrally placed in the wall, connected to the main area by an arched entrance. The interior of the main space is organized by a harmonious system of columns and arches that highlight the space's geometric coherence.