Maria Callas was just one that appeared.
Maria Callas
well a female opera singer is a prima Donna
Philadelphia La Scala Opera Company was created in 1925.
Philadelphia La Scala Opera Company ended in 1954.
La Scala is in Milan, Italy
The female protagonist is Christine Daaé, a young Swedish opera singer.
Teatro alla Scala, commonly known as La Scala is in Milan
stand
Milan
The Scala Opera Theatre built in 1778! :)
Teatro alla Scala, otherwise known as La Scala, is an opera house located in Milan, Italy. I'm not sure whether they have a traveling company that performs in the US.
Using Google search - type in 'La Scala Opera House' and then go to images. This will give you several thousand pictures.