Built 1846-1855 by Virgilio Vespignani. Interior decoration by Giuliano Corsini, Giuseppe Carotino, and Cesare Bacinetti. Paintings by Luigi Samoggia and N. Dal Pane. Opened 4 Aug 1855 with Giuseppe Verdi's "Rigoletto" (due to censorship, under the title "Viscardello") and Giueseppe Rota's ballet "Il fornaretto". 1905 electrification. Severely damaged by bombs in 1943/1944. Subsequently rebuilt to the original plans (with a new ceiling painting by Angelo Canevari). Restorations ca. 2016-2017.

Links: www.teatrounioneviterbo.it, viterbo.artecitta.it, Wikipedia