It was the baptistery of ancient Cathedral, rebuilt by the Bishop Vincenzo in the sixth century, adorned by mosaics that draw the admiration of the spectators, it's a priceless monument of sacred archeology... In the middle of the little dome there is the Christ's monogram in a blue dish; the dome is then divided into eight vertical corners and vertically there are flowers, fruits and birds...
Recommendable is the curtain painted inside the dome, unfolded with symmetry in the eight compartments and enveloping the angles formed by the circle, hangs like a frieze in the second half of the eight corners of the dome, in which are portrayed some human figures, largely perished...
At the basements... of the dome there are the four winged animals by Ezechiel and many ornaments...
On the sides of windows there are pictures of males with pallium painted in chiaroscuro in the attitude to offer crowns. The colossal heads of Christ and the Virgin were painted in the past probably by the Tauro. In the middle of the floor there is the ancient christening font...