"Manhattan" was written by Richard Rodgers and Lorenz Hart for the 1925 revue "Garrick Gaieties," Wikipedia explains:
We'll go to Yonkers/Where true love conquers/In the wild/And starve together, dear/In Child's/We'll go to Coney/And eat baloney/On a roll/In Central Park we'll stroll/Where our first kiss we stole/Soul to soul...The song describes, in several choruses, the simple delights of Manhattan for a young couple in love. The joke is that these "delights" are really some of the worst, or cheapest, sights that New York has to offer; for example, the stifling, humid stench of the subway in summertime is described as "balmy breezes", while the noisy, grating pushcarts on Mott Street are "gently gliding by"... [T]he couple is obviously too poor to afford a honeymoon to the popular summertime destinations of "Niag'ra" or "other places", so they claim to be happy to "save our fares"....