Warsaw's grand opera stages spectacular productions of the classic international opera and ballet repertoire, as well as Polish operas and ballets. The massive neoclassical house, built in the 1820s and reconstructed after the war, has an auditorium with more than 2,000 seats. Stanisław Moniuszko's 1865 opera Straszny Dwór (Haunted Manor), a lively piece with folk costumes and dancing, is a good starting point if you want to explore Polish music: the visual aspects
will entertain you, even if the music is unfamiliar. Plot summaries in English are available at most performances.