Baptistery of Parma - interior decoration, by Unknown artist, 13th Century, fresco. Italy: Emilia Romagna: Parma: Baptistery. Interior view dome baptistery frescoes Baptistery of Parma - interior decoration arcades niches painted scene dome figures of saints tubular ribs departing from the center of the dome, each ending on a column, in turn based on others columns going down to the floor. Unfortunately, in the course of time many problems arose as the paintings had not been executing according to the fresco technique. Therefore they started to come off and fall: therefore the baptistery had to be restored and consolidated even with syringing and injections