Records are falling like dominoes on Broadway.

“Hamilton” last week grossed more than $4 million — the first Broadway show ever to make that much money in a single week.

And, in an encouraging sign for those worried about Broadway’s balance, this year’s unusually healthy crop of plays is performing well financially: Five of them grossed more than $1 million last week, a milestone crossed mostly by musicals.

“I often say Broadway is a wonderful escape from what’s going on in the world, and lots of people were escaping last week,” Charlotte St. Martin, the president of the Broadway League, said. “I’ve never seen anything like it.”

The period between Christmas and New Year’s always brings boffo business to Broadway, but even so, the week ending Dec. 30 was the best-attended (378,910 seats filled) and highest-grossing ($57.8 million) in Broadway history.