The four famous theaters in the world are vienna state opera, Scala Opera House in Milan, Royal Opera House in London, and metropolitan opera in New York.

1. vienna state opera

vienna state opera is one of the most famous opera houses in the world, known as the "world opera center" and the main symbol of Vienna. Vienna state opera is located on the circular avenue in the old city of Vienna. It was originally the Royal Palace Theatre, which was built in 1861 and opened in 1869.

2. Scala Opera House in Italy

Scala Opera House is located in Milan, Italy. It was built in 1778 and formerly known as Grand Duke Theatre. It is not only a magnificent opera house, but also a symbol of Italian opera, and is known as "Mecca of Opera".

3. The Royal Opera House in London, UK

The Royal Opera House in London is one of the most prestigious old theaters in London. It was built in 1732, and was founded by the Royal Charter because it is located in Covent Abbey and Fruit Market in London, so it is also called Covent Garden Royal Theatre.

The Royal Opera House in London was once called by Debussy, a great French composer, as the best representative of the British people. It is not only richly decorated, but also has perfect sound effects.

4. metropolitan opera metropolitan opera is a world-class opera house with a leading position in new york. Metropolitan opera's predecessor was a theater located between 39th Street and 4th Street on Broadway in the second half of 19th century.

this metropolitan opera, which was built in 1965, is the core part of Lincoln Center for the Performing Arts in new york. Its architectural style is a combination of classical and modern, and its scale is huge. It can accommodate more than 4, audiences, and it is one of the few grand theaters in the world.