Giuseppe Verdi is an Italian opera composer known for his operas, including "La Traviata", "Rigoletto", and "Aida".

"Nessun Dorma" is a famous aria from Puccini's opera "Tosca", known for its powerful and dramatic melody.

"Der Ring des Nibelungen" is a cycle of four operas by Richard Wagner, and Siegfried is one of the main characters.

La Scala is a renowned opera house in Milan, Italy, known for its prestigious opera productions.

Georges Bizet is a French composer known for his opera "Carmen", which is based on the novella of the same name by Prosper Mérimée.

"Non più andrai" is an aria from Mozart's opera "The Marriage of Figaro" in which Figaro expresses his joy and anticipation of his wedding.

"Madama Butterfly" is an opera by Puccini that tells the story of Cio-Cio San, a young Japanese woman who falls in love with an American naval officer.

The Sydney Opera House is a renowned opera house in Sydney, Australia, known for its unique and iconic design.

Giacomo Puccini is an Italian composer known for his operas, including "La Bohème", "Tosca", and "Madama Butterfly".

"La donna è mobile" is an aria from Verdi's opera "Rigoletto" in which the Duke of Mantua expresses his desire for Gilda.

"Tristan und Isolde" is an opera by Wagner that tells the story of the tragic love between Tristan and Isolde.

The Metropolitan Opera is a renowned opera house in New York City, known for its prestigious opera productions.

Giacomo Puccini is an Italian composer known for his operas, including "Turandot", "La Bohème", and "Tosca".

"La ci darem la mano" is an aria from Mozart's opera "Don Giovanni" in which the title character expresses his desire to seduce Donna Elvira.

"Aida" is an opera by Verdi that tells the story of the love between Aida, an Ethiopian princess, and Radamès, an Egyptian soldier.