Teatro alla Scala in Milan, Italy, is the oldest ballet theater in the world, dating back to 1778.

The Royal Opera House in Covent Garden, London, is the home of the Royal Ballet.

The Kirov Ballet, now known as the Mariinsky Ballet, is based at the Mariinsky Theatre in St. Petersburg, Russia.

The Paris Opera Ballet is the resident ballet company of the Palais Garnier in Paris, France.

The American Ballet Theatre is based at the David H. Koch Theater at Lincoln Center in New York City.

The Bolshoi Ballet is the resident ballet company of the Bolshoi Theatre in Moscow, Russia.

The San Francisco Ballet is based at the War Memorial Opera House in San Francisco, California.

The National Ballet of Canada is the resident ballet company of the Four Seasons Centre for the Performing Arts in Toronto, Canada.

The Australian Ballet is based at the State Theatre in Melbourne, Australia.

The Royal Danish Ballet is the resident ballet company of the Royal Danish Theatre in Copenhagen, Denmark.

The Hamburg Ballet is based at the Hamburg State Opera in Hamburg, Germany.

The Dutch National Ballet is the resident ballet company of the Dutch National Opera & Ballet in Amsterdam, Netherlands.

The Royal Swedish Ballet is based at the Royal Swedish Opera in Stockholm, Sweden.

The Finnish National Ballet is the resident ballet company of the Finnish National Opera and Ballet in Helsinki, Finland.

The Norwegian National Ballet is based at the Norwegian National Opera & Ballet in Oslo, Norway.