High notes: The world's most beautiful concert halls

(CNN)There's an alchemy to designing the perfect concert hall.

Inside Dubai's $330 million opera house
Inside Dubai's $330 million opera house

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    Inside Dubai's $330 million opera house

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Inside Dubai's $330 million opera house 02:02
As well as delivering an unrivaled acoustic experience, they must be beautiful on the eye and serve as a cultural beacon for the city in which they're ensconced.
    No wonder then these delicate buildings often turn into architectural nightmares that run over-budget, over-schedule and under-perform.
    But controversy aside, these concert halls hit the high notes.
    Check out The Spaces for more of these beautiful venues from around the world.