- The Baptistery Doors Andrea Pisano, the South Door The three entrance doors to the Baptistery open onto the east, north and southern sides of the square. The main entrance is placed on the eastern side, facing the Cathedral, with the the apse and the altar in the interior of San Giovanni behind it. The magnificent sets of doors in gilded bronze that were to become even more famous than the ...www.mega.it/eng/egui/monu/bo.htm