Building attributed to the architect Matteo Pertsch, but in the local archives doesnít exist the original project of Pertsch. Are instead documented enlargement interventions by De Puppi (1831) and Buttazzoni (1832-33). In projecting Rotonda disposed of a fragmentary urban fabric, irregular close to the walled city. Pertsch designs on the acute angle of the lot a semi-circular of the temple with giant order and ionic capitals that can be read also as a bent faÁade of a prostyle temple. The giant order sustains a very thick cornice. The columns are placed on the wall in which are carved out three window-doors balustrade between the basements of the columns, and in the superior part, the high-relieves represent the scenes of Greek-roman inspiration, with evident didactic intentions (Coriolano, Lucrezia, The Sacrifice of Iphigenia).