The Teatro dell'Opera di Roma, a.k.a. Teatro Costanzi, is one of the most important Opera houses in the world. Built in the late XIX century, it has been remodeled in the 1950's. It held the premieres of Mascagni's Cavalleria Rusticana and Puccini's Tosca. This season 2018/19 will start in December with Verdi's Rigoletto, to proceed with Anna Bolena by Donizetti, for a total of 13 operas and 5 ballets