The city is traditionally one of the cultural centres of Europe, hosting many cultural events. Some of the significant cultural institutions include the National Theatre (''Národní Divadlo'') and the Estates Theatre (''Stavovské or Tylovo'' or ''Nosticovo divadlo''), where the premières of Mozart's ''Don Giovanni'' and ''La clemenza di Tito'' were held. Other major cultural institutions are the Rudolfinum which is home to the Czech Philharmonic Orchestra and the Municipal House which is home to the Prague Symphony Orchestra. The Prague State Opera (Státní opera) performs at the Smetana Theatre.