The production held its 10,000th performance Saturday in New York City's storied theater district.
2011 was reportedly the show's highest-earning year, raking in more in a single week than in any other week since it began its run on Broadway.
It made over $1,500,000 during that record-breaking week.
The show has made $845 million.
The Andrew Lloyd Webber musical first opened on Broadway on Jan. 26, 1988.
It is an adaptation of the French novel by Gaston Leroux.
There was a giant cake and special curtain call at Saturday's historic performance at the Majestic Theater.
It is the first musical to accomplish such a feat.
"The Phantom of the Opera", now in its 24th year, is the longest running musical in Broadway history.
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