An opera house is a theater building specifically designed for the performance of opera, a dramatic art form that combines singing, orchestral music, and sometimes dance. These venues often feature elaborate architecture and acoustics to enhance the audience's experience. Many famous opera houses, like the Sydney Opera House and La Scala in Milan, are renowned for their stunning designs and cultural significance. In addition to hosting operas, these venues may also present other performances, such as ballet, musicals, and concerts. Opera houses often serve as cultural landmarks in their cities, attracting tourists and locals alike to enjoy the arts.