For 10 points, name these theaters that include La Scala in Milan and are where works like Bizet's Carmen can be performed.
Werner Herzog's film Fitzcarraldo centers on a rubber baron who wants to build one of these objects in a jungle. Zaha Hadid designed one of these buildings in Guangzhou with a twin boulder structure. San Francisco is home to one of these buildings called the War Memorial, and Oslo is home to one whose white sloping roof dips into the sea. Jorn Utzon designed one of these buildings in Sydney that has white vaulted roof shells. For 10 points, name these theaters that include La Scala in Milan and are where works like Bizet's Carmen can be performed.
Werner Herzog's film Fitzcarraldo centers on a rubber baron who wants to build one of these objects in a jungle.
opera houses [accept equivalents; prompt on less specific answers such "theatres"] 