This show was the first collaboration between Jerry Bock and Sheldon Harnick on Broadway (as far as I know correct me if I’m wrong) and tied with The Sound of Music for Best Musical in 1960, that’s why there’s 11 shows on the list instead of the usual 10. The show tells the story of Fiorello LaGuardia taking on the corrupt political system of Tammany Hall by running for congress for becoming mayor New York!