The ballroom realized by architect and decorator Giovan Battista Caretti .- The Villa Torlonia was designed by the Neoclassical architect Giuseppe Valadier. Construction began in 1806 for the banker Giovanni Torlonia (1756-1829) and was not finished by his son Alessandro (1800-1880).- Benito Mussolini rented it from the Torlonia for one lira a year to use as his state residence from 1925 to 1943.-The Villa was abandoned after 1945; and allowed to decay in the following decades; but recent restoration work has allowed it to be opened to the public as a museum owned and operated by Rome's municipality.Rome; Italy. 2021.