Teatro alla Scala in Milan, Italy, is the oldest continuously operating opera house in the world, having opened in 1778.

The Musikverein in Vienna, Austria, is renowned for its annual New Year's Concert, which is broadcast worldwide.

The Metropolitan Opera in New York City is the largest opera house in the world by seating capacity, with over 3,800 seats.

The Arena di Verona in Verona, Italy, is a famous open-air amphitheater known for its opera performances during the summer months.

Symphony Hall in Boston, Massachusetts, is renowned for its distinctive "shoebox" shape, which provides excellent acoustics for classical music performances.

The Concertgebouw in Amsterdam, Netherlands, is known for its exceptional acoustics and its unique organ, which is considered one of the finest in the world.

The Palais Garnier in Paris, France, is renowned for its opulent design and architecture, and is considered one of the most beautiful opera houses in the world.

The Royal Albert Hall in London, England, is known for its annual BBC Proms concerts, which feature a wide range of classical music performances throughout the summer months.

The Walt Disney Concert Hall in Los Angeles, California, is known for its distinctive "flying saucer" design and its exceptional acoustics.

The Sydney Opera House in Sydney, Australia, is renowned for its unique and iconic design, which resembles a series of large white sails.

The Philharmonie Berlin in Berlin, Germany, is known for its innovative design and exceptional acoustics, making it one of the most renowned concert halls in the world.

The Walt Disney Concert Hall in Los Angeles, California, is known for its striking architecture and outdoor amphitheater, which hosts a variety of musical performances.

The War Memorial Opera House in San Francisco, California, is known for its beautiful architecture and acoustics, and is home to the San Francisco Opera.

The Koncerthuset in Copenhagen, Denmark, is known for its unique "spiral" design, which creates a visually striking and acoustically excellent concert hall.

The Teatro Colón in Buenos Aires, Argentina, is known for its grand architecture and acoustics, and is considered one of the leading opera houses in the world.