Although the façade of this vast square building has preserved its 14C appearance, the rear of the building was modified in the 16C and the palazzo's other wing is home to a finely sculpted Renaissance doorway. Today the palazzo houses two important collections, namely the Museo Archeologico della Civilità Etrusca (funerary vases etc) and the Museo Diocesano di Arte Sacra (canvases by Francesco Zuccarelli).