An opera is a theatrical art form that combines singing, orchestral music, acting, and sometimes dance to tell a story. It typically features a dramatic narrative, with characters expressing their emotions through vocal performances. Operas are often performed in specific venues called opera houses, which are designed to enhance the acoustics and visual experience for the audience. The music in an opera is usually composed for a full orchestra and includes various styles, such as aria (a solo vocal piece) and recitative (a style that mimics speech). Famous composers like Wolfgang Amadeus Mozart and Giuseppe Verdi have created well-known operas that continue to be performed worldwide.