Glass not safe from Opera House singers

I doubt the concept of having a Royal Opera house made out of glass. It might look good at first but I don't think it is wise since opera singers have voices that could shatter it to pieces. And I'm not joking.

I doubt the concept of having a Royal Opera house made out of glass.

It might look good at first but I don't think it is wise since opera singers have voices that could shatter it to pieces.

And I'm not joking.

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