Exterior: On the south end is a loggia supported by Doric columns and flanked by the body of the neo-Gothic "Pedrocchino". The latter, is constituted by a turret with an octagonal base, which represents a source of light, from the windows on each side. Inside there is a spiral staircase. Two loggias in the same style are located on the north side, and in front of these there are four stone lions carved by Petrelli, which mimic those of basalt that adorn the Cordonata di Campidoglio in Rome. Between the two lodges on the north side there is a terrace bordered by Corinthian columns.