In 1880, commissioned by the Miniscalchi-Erizzo family, the architect Gustavo Strauss designed the majestic three-storey classical palace and courtyard, which today forms part of the museum itinerary.
Majestic evidence of the new building is the staircase, consisting of three flights of stairs with white stone balustrade above which opens a lantern skylight.
Alternating at the corners appear the coats of arms of Miniscalchi and Erizzo carved inside white stone shields.
On the walls are present, embedded in stucco frames, eighteen different paintings for subjects and epochs.