Read about: Teatro dell’Opera di Roma and other news about Rome city and hotels in Rome. Rome Opera House (Teatro dell'Opera di Roma) is a famous Italian opera theatre. It was originally opened in November 1880 as Constanzi Theatre, and since that time it underwent several changes of name and a number of reconstructions. The present building is one of the best opera houses in the world, which can accommodate up to 1,600 people. Since 1 December you can purchase tickets for the theatre season-2008 in the box offices of the Teatro dell'Opera di Roma.