If you visit Rome for a few days, it might be a good idea to visit an opera. During the summer there are quite a few operas, concerts and recitals performed in the open air amidst Rome's gardens, parks and monuments. If you like to see an opera in a historical venue, you should go to the Teatro dell'Opera, Rome's prestigious opera house, which also puts on ballets. It was founded in the 19th century and was the location of the first performance of Puccini's TOSCA.